1986 IUCN red list of threatened animals - IUCN Conservation Monitoring Centre. (International Union for Conservation of Nature and Natural Resources, 1986)

1988 IUCN red list of threatened animals (1988)

1990 IUCN red list of threatened animals (1990)

1994 IUCN red list of threatened animals (1994)

Abhandlungen der Kaiserlich-Königlichen Geologischen Reichsanstalt - K.K. Geologische Reichsanstalt (Austria) (Kaiserlich-Königlichen Geologische Reichsanstalt, 1870)

Abhandlungen der Königlich Preussischen Geologischen Landesanstalt - Königlich-Preussische Geologische Landesanstalt. (1895)

Abhandlungen der Königlich Preussischen Geologischen Landesanstalt - Königlich-Preussische Geologische Landesanstalt. (1910)

Abhandlungen der Königlichen Akademie der Wissenschaften zu Berlin - Deutsche Akademie der Wissenschaften zu Berlin. (Realschul-Buchhandlung, 1858)

Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft - Senckenbergische Naturforschende Gesellschaft. (Waldemar Kramer [etc.], 1897)

Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft - Senckenbergische Naturforschende Gesellschaft. (Waldemar Kramer [etc.], 1914)

Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft - Senckenbergische Naturforschende Gesellschaft. (Waldemar Kramer [etc.], 1918)

Abhandlungen und Berichte des Königl. Zoologischen und Anthropologisch-Etnographischen Museums zu Dresden - Königl. Zoologisches und Anthropologisch-Ethnographisches Museum zu Dresden (Germany) (R. Friedlaender, 1898)

Abhandlungen und Berichte des Königl. Zoologischen und Anthropologisch-Etnographischen Museums zu Dresden - Königl. Zoologisches und Anthropologisch-Ethnographisches Museum zu Dresden (Germany) (R. Friedlaender, 1899)

Abhandlungen und Berichte des Königl. Zoologischen und Anthropologisch-Etnographischen Museums zu Dresden - Königl. Zoologisches und Anthropologisch-Ethnographisches Museum zu Dresden (Germany) (R. Friedlaender, 1910)

Abhandlungen und Berichte des Königl. Zoologischen und Anthropologisch-Etnographischen Museums zu Dresden - Königl. Zoologisches und Anthropologisch-Ethnographisches Museum zu Dresden (Germany) (R. Friedlaender, 1917)

Abhandlungen von Schnecken Muscheln und Seegewachsen, welche um Ambroin na und den umliegenden Inseln gefunden werden : Als ein Anhang zu Georg Eberhard Rumphs Amboinischen Raritatenkammer - Rumpf, Georg Eberhard, 1627 -1702 (Krauss, 1705)

The Acanthaster phenomenon - Moran, Peter John. (Australian Institute of Marine Science, 1988)

Accessions 172586 and 176603, Marshall & Mariana Islands, 1946-1947 - Schultz, Leonard P. (Leonard Peter), 1901 -1986 (1946)

Actes de la Société linnéenne de Bordeaux - Société Linnéenne de Bordeaux. (The Society, 1883)

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The age of the earth and other geological studies - Sollas, W. J. (William Johnson), 1849 -1936 (T.F. Unwin, 1908)

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Album der Natuur - Vries, Hugo de, 1848 -1935 (1858)

Album der Natuur - Vries, Hugo de, 1848 -1935 (1852)

Allgemeine biologie - Kammerer, Paul, 1880 -1926 (Deutsche Verlagsanstalt, 1915)

Allgemeine Biologie - Johannsen, W. (Wilhelm), 1857 -1927 (Teubner, 1915)

Allgemeine naturgeschichte, als Philosophische und Humanitätswissenschaft für Naturforscher, Philosophen und das Hoher gebildete Publikum - Perty, Maximilian, 1804 -1884 (C. Fischer, 1841)

Allgemeine Naturgeschichte für alle Stände - Oken, Lorenz, 1779 -1851 (Hoffman'sche Verlags-Buchhandlung, 1835)

Allgemeine Naturgeschichte für alle Stände - Oken, Lorenz, 1779 -1851 (Hoffman'sche Verlags-Buchhandlung, 1836)

Allgemeine Naturgeschichte für alle Stände - Oken, Lorenz, 1779 -1851 (Hoffman'sche Verlags-Buchhandlung, 1842)

D'Amboinsche rariteitkamer : behelzende eene beschryvinge van allerhande zoo weeke als harde schaalvisschen, te weeten raare krabben, kreeften, en diergelyke zeedieren, als mede allerhande hoorntjes en schulpen, die men in d'Amboinsche zee vindt : daar beneven zommige mineraalen, gesteenten, en soorten van aarde, die in d'Amboinsche, en zommige omleggende eilanden gevonden worden : verdeelt in drie boeken, en met nodige printverbeeldingen, alle naar 't leven getekent, voorzien - Rumpf, Georg Eberhard, 1627 -1702 (Gedrukt by François Halma, boekverkoper in Konstantijn den Grooten, 1705)

American conchologist : quarterly bulletin of the Conchologists of America, Inc - Conchologists of America. (Lipps-National Press, 1987)

American conchologist : quarterly bulletin of the Conchologists of America, Inc - Conchologists of America. (Lipps-National Press, 1992)

American conchologist : quarterly bulletin of the Conchologists of America, Inc - Conchologists of America. (Lipps-National Press, 1997)

American conchologist : quarterly bulletin of the Conchologists of America, Inc - Conchologists of America. (Lipps-National Press, 2001)

American conchologist : quarterly bulletin of the Conchologists of America, Inc - Conchologists of America. (Lipps-National Press, 2005)

American conchologist : quarterly bulletin of the Conchologists of America, Inc - Conchologists of America. (Lipps-National Press, 2011)

American conchologist : quarterly bulletin of the Conchologists of America, Inc - Conchologists of America. (Lipps-National Press, 2013)

American conchologist : quarterly bulletin of the Conchologists of America, Inc - Conchologists of America. (Lipps-National Press, 2014)

American conchologist : quarterly bulletin of the Conchologists of America, Inc - Conchologists of America. (Lipps-National Press, 2018)

American conchologist : quarterly bulletin of the Conchologists of America, Inc - Conchologists of America. (Lipps-National Press, 2019)

American conchologist : quarterly bulletin of the Conchologists of America, Inc - Conchologists of America. (Lipps-National Press, 2021)

American journal of conchology - Tryon, George W., (George Washington), 1838 -1888 (G.W. Tryon, jr, 1866)

American journal of conchology - Tryon, George W., (George Washington), 1838 -1888 (G.W. Tryon, jr, 1868)

The American journal of science (J.D. & E.S. Dana, 1900)

The American journal of science and arts - Silliman, Benjamin, 1779 -1864 (S. Converse, 1851)

The American journal of science and arts - Silliman, Benjamin, 1779 -1864 (S. Converse, 1853)

The American journal of science and arts - Silliman, Benjamin, 1779 -1864 (S. Converse)

American malacological bulletin - American Malacological Union. ([American Malacological Union], 1988)

American malacological bulletin - American Malacological Union. ([American Malacological Union], 1992)

American malacological bulletin - American Malacological Union. ([American Malacological Union], 1996)

American malacological bulletin - American Malacological Union. ([American Malacological Union], 2001)

American malacological bulletin - American Malacological Union. ([American Malacological Union], 2008)

American malacological bulletin - American Malacological Union. ([American Malacological Union], 2011)

American malacological bulletin - American Malacological Union. ([American Malacological Union], 2012)

The American Museum journal - American Museum of Natural History (American Museum of Natural History, 1908)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1869)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1884)

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The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1891)

American seashells - Abbott, R. Tucker (Robert Tucker), 1919 -1995 (Van Nostrand, 1954)

Amtliche berichte über die Internationale fischerei-ausstellung zu Berlin, 1880 ... - Borne, Max von dem, 1826 -1894 (P. Parey, 1880)

Amtlicher Bericht über die Versammlung Deutscher Naturforscher und Aerzte - Gesellschaft Deutscher Naturforscher und Ärzte. (1844)

Amtlicher Bericht über die Versammlung Deutscher Naturforscher und Aerzte - Gesellschaft Deutscher Naturforscher und Ärzte. (1845)

Anales del Museo Nacional de Buenos Aires - Museo Nacional de Buenos Aires. (Impr. de Juan A. Alsina, 1895)

Analytischer Leitfaden für den ersten wissenschaftlichen Unterricht in der Naturgeschichte. erstes Heft, Zoologie - Leunis, Johannes, 1802 -1873 (Hahn'sche Hofbuchhandlung, 1858)

Anatomischer Anzeiger - Anatomische Gesellschaft. (G. Fischer, 1888)

Anatomy of the invertebrata - Siebold, C. Th. E. von (Carl Theodor Ernst), 1804 -1885 (J. Campbell, 1874)

Anatomy of the invertebrata - Siebold, C. Th. E. von (Carl Theodor Ernst), 1804 -1885 (Gould and Lincoln, 1854)

Animal coloration : an account of the principal facts and theories relating to the colours and markings of animals - Beddard, Frank E. (Frank Evers), 1858 -1925 (S. Sonnenschein, 1895)

Animal coloration : an account of the principal facts and theories relating to the colours and markings of animals - Beddard, Frank E. (Frank Evers), 1858 -1925 (S. Sonnenschein & co, 1892)

Animal coloration; an account of the principal facts and theories relating to the colours and markings of animals - Beddard, Frank E. (Frank Evers), 1858 -1925 (S. Sonnenschein, 1892)

Animal forms; a second book of zoology - Jordan, David Starr, 1851 -1931 (D. Appleton and Company, 1902)

Animal forms; a second book of zoology - Jordan, David Starr, 1851 -1931 (D. Appleton and company, 1902)

Animal forms; a text-book of zoology - Jordan, David Starr, 1851 -1931 (D. Appleton, 1902)

The animal kingdom, arranged according to its organization, serving as a foundation for the natural history of animals : and an introduction to comparative anatomy - Cuvier, Georges, baron, 1769 -1832 (G. Henderson, 1834)

The animal kingdom, arranged according to its organization, serving as a foundation for the natural history of animals : and an introduction to comparative anatomy - Cuvier, Georges, baron, 1769 -1832 (G. Henderson, 1837)

The animal kingdom, arranged according to its organization, serving as a foundation for the natural history of animals : and an introduction to comparative anatomy - Cuvier, Georges, baron, 1769 -1832 (G. Henderson, 1836)

The animal kingdom : arranged after its organization, forming a natural history of animals and an introduction to comparative anatomy - Carpenter, William Benjamin, 1813 -1885 (W. S. Orr and co, 1854)

The animal kingdom : arranged after its organization, forming a natural history of animals, and an introduction to comparative anatomy - Carpenter, William Benjamin, 1813 -1885 (Wm. S. Orr and Co., Amen Corner, Paternoster Row, 1849)

The animal kingdom : arranged after its organization; forming a natural history of animals, and an introduction to comparative anatomy - Carpenter, William Benjamin, 1813 -1885 (H.G. Bohn, 1863)

The animal kingdom : arranged in conformity with its organization - Cuvier, Georges, baron, 1769 -1832 (Carvill, 1832)

The animal kingdom : arranged in conformity with its organization - Gray, John Edward 1800 -1875 (Printed for G.B. Whittaker, 1834)

The animal kingdom : arranged in conformity with its organization - Gray, John Edward 1800 -1875 (Printed for G.B. Whittaker, 1835)

The animal kingdom : arranged in conformity with its organization - Cuvier, Georges, baron, 1769 -1832 (G. & C. & H. Carvill, 1833)

The animal kingdom : arranged in conformity with its organization - Cuvier, Georges, baron, 1769 -1832 (G. & C. & H. Carvill, 1831)

Animal life as affected by the natural conditions of existence - Semper, C. (Carl), 1832 -1893 (Appleton, 1881)

Animal life as affected by the natural conditions of existence - Semper, C. (Carl), 1832 -1893 (D. Appleton, 1881)

Animal parasites and messmates - Beneden, P.-J. van (Pierre Joseph), 1809 -1894 (H.S. King, 1876)

Animal parasites and messmates - Beneden, P.-J. van (Pierre Joseph), 1809 -1894 (K. Paul, Trench, 1889)

Animal parasites and messmates - Beneden, P.-J. van (Pierre Joseph), 1809 -1894 (Kegan Paul, Trench, 1883)