1988 IUCN red list of threatened animals (1988)

1990 IUCN red list of threatened animals (1990)

1994 IUCN red list of threatened animals (1994)

Årsskrift - Kungl. Vetenskaps-societeten i Uppsala. (Kongl. Vetenskaps-societeten i Upsala, 1860)

Abbildungen von Vogel-Skeletten - Meyer, Adolf Bernhard, 1840 -1911 ([s.n.], 1879)

Abhandlungen - Heidelberger Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Klasse. (W. de Gruyter [etc.], 1922)

Abhandlungen der Mathematisch-Physikalischen Klasse der Königlich Bayerischen Akademie der Wissenschaften - Königlich Bayerische Akademie der Wissenschaften (1832)

Abhandlungen und Berichte des Königl. Zoologischen und Anthropologisch-Etnographischen Museums zu Dresden - Königl. Zoologisches und Anthropologisch-Ethnographisches Museum zu Dresden (Germany) (R. Friedlaender, 1890)

Abhandlungen und Berichte des Königl. Zoologischen und Anthropologisch-Etnographischen Museums zu Dresden - Königl. Zoologisches und Anthropologisch-Ethnographisches Museum zu Dresden (Germany) (R. Friedlaender, 1892)

Abhandlungen und Berichte des Königl. Zoologischen und Anthropologisch-Etnographischen Museums zu Dresden - Königl. Zoologisches und Anthropologisch-Ethnographisches Museum zu Dresden (Germany) (R. Friedlaender, 1894)

Abhandlungen und Berichte des Königl. Zoologischen und Anthropologisch-Etnographischen Museums zu Dresden - Königl. Zoologisches und Anthropologisch-Ethnographisches Museum zu Dresden (Germany) (R. Friedlaender, 1896)

An account of the collections of birds made by Mr. William Doherty in the Eastern Archipelago - Hartert, Ernst, 1859 -1933 (1896)

Aggiunte alla ornitologia della Papuasia e delle Molucche - Salvadori, Tommaso, 1835 -1923 (Ermanno Loescher, 1889)

Alauda : revue internationale d'ornithologie - Muséum national d'histoire naturelle (France) (Société d'études ornithologiques de France, 1987)

Alauda : revue internationale d'ornithologie - Muséum national d'histoire naturelle (France) (Société d'études ornithologiques de France, 1998)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1894)

Anales de la Sociedad Española de Historia Natural - Sociedad Española de Historia Natural. (La Sociedad, 1888)

An analytical index to the works of the late John Gould - Sharpe, Richard Bowdler, 1847 -1909 (H. Sotheran, 1893)

Anatomischer Anzeiger - Anatomische Gesellschaft. (G. Fischer, 1902)

Animal keepers' forum - American Association of Zoo Keepers (American Association of Zoo Keepers, 1987)

The animal kingdom, or zoological system, of the celebrated Sir Charles Linnæus. containing a complete systematic description, arrangement, and nomenclature, of all the known species and varieties of the mammalia, or animals which give suck to their young. Class I, Mammalia - Gmelin, Johann Friedrich, 1748 -1804 (Printed for A. Strahan, and T. Cadell, London, and W. Creech, Edinburgh, 1792)

Animalia vertebrata : Aves. classis II - Museo civico di storia naturale di Milano. (the Museo, 1847)

Animate creation; popular edition of "Our living world" a natural history - Wood, J. G. (John George), 1827 -1889 (S. Hess, 1885)

Animate creation; popular edition of "Our Living World" a natural history - Brehm, Alfred Edmund, 1829 -1884 (S. Hess, 1898)

Annalen des K.K. Naturhistorischen Hofmuseums - K.K. Naturhistorisches Hofmuseum (Vienna, Austria) (Alfred Hölder, 1888)

Annalen des K.K. Naturhistorischen Hofmuseums - K.K. Naturhistorisches Hofmuseum (Vienna, Austria) (Alfred Hölder, 1891)

Annales de l'Association des Naturalistes de Levallois-Perret - Association des naturalistes de Levallois-Perret. (1904)

Annales des sciences naturelles. Zoologie - Audouin, Jean Victor, 1797 -1841 (Crochard, 1859)

Annales des sciences naturelles. Zoologie - Audouin, Jean Victor, 1797 -1841 (Crochard, 1866)

Annales des sciences naturelles. Zoologie - Audouin, Jean Victor, 1797 -1841 (Crochard, 1895)

Annales des sciences naturelles. Zoologie - Audouin, Jean Victor, 1797 -1841 (Crochard, 1902)

Annali del Museo civico di storia naturale di Genova - Museo civico di storia naturale di Genova (Italy) (Tip. del R. Istituto Sordo-Muti, 1875)

Annali del Museo civico di storia naturale di Genova - Museo civico di storia naturale di Genova (Italy) (Tip. del R. Istituto Sordo-Muti, 1877)

Annali del Museo civico di storia naturale di Genova - Museo civico di storia naturale di Genova (Italy) (Tip. del R. Istituto Sordo-Muti, 1870)

Annali del Museo civico di storia naturale di Genova - Museo civico di storia naturale di Genova (Italy) (Tip. del R. Istituto Sordo-Muti, 1889)

Annali del Museo civico di storia naturale di Genova - Museo civico di storia naturale di Genova (Italy) (Tip. del R. Istituto Sordo-Muti, 1910)

Annali del Museo civico di storia naturale Giacomo Doria - Museo civico di storia naturale Giacomo Doria (Genoa, Italy) (Stab. tipo-litografico P. Pellas Fu L, 1920)

Annali del Museo civico di storia naturale Giacomo Doria - Museo civico di storia naturale Giacomo Doria (Genoa, Italy) (Stab. tipo-litografico P. Pellas Fu L, 1938)

The Annals and magazine of natural history; zoology, botany, and geology (Taylor and Francis, Ltd, 1841)

The Annals and magazine of natural history; zoology, botany, and geology (Taylor and Francis, Ltd, 1843)

The Annals and magazine of natural history; zoology, botany, and geology (Taylor and Francis, Ltd, 1857)

The Annals and magazine of natural history; zoology, botany, and geology (Taylor and Francis, Ltd, 1865)

Annals of natural history (R. and J.E. Taylor, 1841)

Annals of the Carnegie Museum - Carnegie Museum (Published by authority of the Board of Trustees of the Carnegie Institute, 1902)

Annals of the Carnegie Museum - Carnegie Museum (Published by authority of the Board of Trustees of the Carnegie Institute, 1965)

Annals of the Lyceum of Natural History of New York - Lyceum of Natural History (New York, N.Y.) (1828)

Annals of the Natal Museum - Natal Museum (Pietermaritzburg, South Africa) (Adlard & Son, 1914)

Annotated CITES appendices and reservations 1988 (1988)

Annual report ... of the Zoological Society of Philadelphia - Zoological Society of Philadelphia. (1874)

Annual report ... of the Zoological Society of Philadelphia - Zoological Society of Philadelphia. (1875)

Annual report ... of the Zoological Society of Philadelphia - Zoological Society of Philadelphia. (1877)

Annual report ... of the Zoological Society of Philadelphia - Zoological Society of Philadelphia. (1888)

Annual report ... of the Zoological Society of Philadelphia - Zoological Society of Philadelphia. (1901)

Annual report ... of the Zoological Society of Philadelphia - Zoological Society of Philadelphia. (1902)

Annual report ... of the Zoological Society of Philadelphia - Zoological Society of Philadelphia. (1918)

Annual report - Harvard University. Museum of Comparative Zoology. (Harvard University, 1964)

Annual report of the Board of Commissioners of the Central Park - New York (N.Y.). Board of Commissioners of the Central Park. ([Board of Commissioners of the Central Park], 1867)

Annual report of the Board of Commissioners of the Department of Public Parks for the year ending ... - New York (N.Y.). Department of Public Parks. (William C. Bryant & Co, 1871)

Annual report of the Board of Commissioners of the Department of Public Parks for the year ending ... - New York (N.Y.). Department of Public Parks. (William C. Bryant & Co, 1872)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1866)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1890)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1891)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1896)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1897)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1901)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1902)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1903)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1904)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1911)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1912)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1913)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1914)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1915)

Annual report of the Board of Regents of the Smithsonian Institution - Smithsonian Institution (Smithsonian Institution, 1916)

Annual report of the New York Zoological Society - New York Zoological Society. (The Society, 1906)

The annual report of the Zoological and Acclimatisation Society of Victoria, and report of the annual meeting of the Society - Zoological; Acclimatisation Society of Victoria (Sands & McDougall, 1889)

The annual report of the Zoological and Acclimatisation Society of Victoria, and report of the annual meeting of the Society - Zoological; Acclimatisation Society of Victoria (Sands & McDougall, 1892)

The annual report of the Zoological and Acclimatisation Society of Victoria, and report of the annual meeting of the Society - Zoological; Acclimatisation Society of Victoria (Sands & McDougall, 1893)

The annual report of the Zoological and Acclimatisation Society of Victoria, and report of the annual meeting of the Society - Zoological; Acclimatisation Society of Victoria (Sands & McDougall, 1899)

The annual report of the Zoological and Acclimatisation Society of Victoria, and report of the annual meeting of the Society - Zoological; Acclimatisation Society of Victoria (Sands & McDougall, 1903)

The annual report of the Zoological and Acclimatisation Society of Victoria, and report of the annual meeting of the Society - Zoological; Acclimatisation Society of Victoria (Sands & McDougall, 1906)

The annual report of the Zoological and Acclimatisation Society of Victoria, and report of the annual meeting of the Society - Zoological; Acclimatisation Society of Victoria (Sands & McDougall, 1907)

The annual report of the Zoological and Acclimatisation Society of Victoria, and report of the annual meeting of the Society - Zoological; Acclimatisation Society of Victoria (Sands & McDougall, 1908)

The annual report of the Zoological and Acclimatisation Society of Victoria, and report of the annual meeting of the Society - Zoological; Acclimatisation Society of Victoria (Sands & McDougall, 1910)

The annual report of the Zoological and Acclimatisation Society of Victoria, and report of the annual meeting of the Society - Zoological; Acclimatisation Society of Victoria (Sands & McDougall, 1911)

The annual report of the Zoological and Acclimatisation Society of Victoria, and report of the annual meeting of the Society - Zoological; Acclimatisation Society of Victoria (Sands & McDougall, 1912)

The annual report of the Zoological and Acclimatisation Society of Victoria, and report of the annual meeting of the Society - Zoological; Acclimatisation Society of Victoria (Sands & McDougall, 1914)

The annual report of the Zoological and Acclimatisation Society of Victoria, and report of the annual meeting of the Society - Zoological; Acclimatisation Society of Victoria (Sands & McDougall, 1915)

The annual report of the Zoological and Acclimatisation Society of Victoria, and report of the annual meeting of the Society - Zoological; Acclimatisation Society of Victoria (Sands & McDougall, 1916)

The annual report of the Zoological and Acclimatisation Society of Victoria, and report of the annual meeting of the Society - Zoological; Acclimatisation Society of Victoria (Sands & McDougall, 1917)

The annual report of the Zoological and Acclimatisation Society of Victoria, and report of the annual meeting of the Society - Zoological; Acclimatisation Society of Victoria (Sands & McDougall, 1919)

The annual report of the Zoological and Acclimatisation Society of Victoria, and report of the annual meeting of the Society - Zoological; Acclimatisation Society of Victoria (Sands & McDougall, 1913)

Annual report / Zoological Society of London - Zoological Society of London. (1861)

Annuario del Museo Zoologico della Università di Napoli - Università di Napoli. Museo Zoologico. (1905)

Archiv für mikroskopische Anatomie (J. Springer [etc.], 1893)

Archiv für mikroskopische Anatomie (J. Springer [etc.], 1894)

Archiv für Naturgeschichte. Abteilung A (Nicolai, 1912)

Archiv für Naturgeschichte. Abteilung A (Nicolai, 1915)

Archiv für Naturgeschichte (Nicolai, 1844)

Archiv für Naturgeschichte (Nicolai, 1846)

Archiv für Naturgeschichte (Nicolai, 1851)

Archiv für Naturgeschichte (Nicolai, 1854)

Archiv für Naturgeschichte (Nicolai, 1859)

Archiv für Naturgeschichte (Nicolai, 1863)

Archiv für Naturgeschichte (Nicolai, 1864)

Archiv für Naturgeschichte (Nicolai, 1865)

Archiv für Naturgeschichte (Nicolai, 1868)

Archiv für Naturgeschichte (Nicolai, 1872)

Archiv für Naturgeschichte (Nicolai, 1878)

Archiv für Naturgeschichte (Nicolai, 1890)

Archiv für Naturgeschichte (Nicolai, 1894)

Archiv für Naturgeschichte (Nicolai, 1900)

Archiv für Naturgeschichte (Nicolai, 1902)

Archives de zoologie expérimentale et générale - Centre national de la recherche scientifique (France) (Centre national de la recherche scientifique [etc.], 1913)

Arsskrift utgifven af Kongl / Vetenskaps-Societeten i Upsala - Kungl. Vetenskaps-societeten i Uppsala. (1860)

Atlante ornitologico : uccelli europei : con notizie d'indole generale e particolare - Arrigoni degli Oddi, Ettore, 1867 -1942 (U. Hoepli, 1902)

Atlas of zoogeography; a series of maps illustrating the distribution of over seven hundred families, genera, and species of existing animals - Clarke, William Eagle, 1853 -1938 (Pub. at the Edinburg Geographical Institute, by J. Bartholomew & Co, 1911)

Atti della Società italiana di scienze naturali - Società italiana di scienze naturali. (Coi tipi di G. Bernardoni, 1876)