Oversigt over det Kongelige Danske videnskabernes selskabs forhandlinger = Bulletin de l'Académie royale des sciences et des lettres de Danemark - Kongelige Danske videnskabernes selskab. (A.F. Høst, 1846)

Oversigt over det Kongelige Danske videnskabernes selskabs forhandlinger = Bulletin de l'Académie royale des sciences et des lettres de Danemark - Kongelige Danske videnskabernes selskab. (A.F. Høst, 1851)

Oversigt over det Kongelige Danske videnskabernes selskabs forhandlinger = Bulletin de l'Académie royale des sciences et des lettres de Danemark - Kongelige Danske videnskabernes selskab. (A.F. Høst, 1856)

Palaeontographia Italica : Memorie di paleontologia - Canavari, Mario 1855 -1928 (Tip. T. Nistri, 1899)

Palaeontographia Italica : Memorie di paleontologia - Canavari, Mario 1855 -1928 (Tip. T. Nistri, 1901)

Palaeontographia Italica : Memorie di paleontologia - Canavari, Mario 1855 -1928 (Tip. T. Nistri, 1911)

Palaeontographica (Theodor Fischer, 1877)

Palaeontographica (Theodor Fischer, 1880)

Palaeontographica (Theodor Fischer, 1885)

Palaeontographica (Theodor Fischer, 1913)

Parasitology - British Society for Parasitology. (Cambridge University Press, 1918)

Pattedyr - Winge, H. (Herluf) (Forlagt af G.E.C. Gad, 1908)

Pepacton - Burroughs, John, 1837 -1921 (Houghton, Mifflin, 1901)

Pepacton - Burroughs, John, 1837 -1921 (Houghton Mifflin company, 1909)

Pepacton - Burroughs, John, 1837 -1921 (Houghton, Mifflin, 1902)

Pepacton - Burroughs, John, 1837 -1921 (1897)

Die Pflanzenwelt Deutschlands; Lehrbuch der Formations- biologie. Eine Darstellung der Lebensgeschichte der wildwachsenden Pflanzenvereine und der Kulturflächen - Graebner, Paul, 1871 -1933 (Quelle & Meyer, 1909)

Pharmaceutical journal and transactions - Pharmaceutical Society of Great Britain (J. & A. Churchill, 1869)

Philosophical transactions of the Royal Society of London - Royal Society (Great Britain) (Royal Society of London, 1850)

Philosophical transactions of the Royal Society of London - Royal Society (Great Britain) (Royal Society of London, 1851)

The philosophy of natural history - Ware, John, 1795 -1864 (W. J. Reynolds, 1843)

The philosophy of natural history - Ware, John, 1795 -1864 (Hilliard, Gray and Company, 1838)

The philosophy of natural history. With an introduction and various additions and alterations, intended to adapt it to the present state of knowledge - Ware, John, 1795 -1864 (W. J. Reynolds, 1841)

Phoca Holitschensis, der fossile Phocafus des Pester Universitäts-Museums, ein Unicum - Zoologische Universitäts-Museum (Pest, Hungary) (W. Braumüller, 1860)

The physical geology and geography of Great Britain : a manual of British geology - Woodward, Horace B. (Horace Bolingbroke), 1848 -1914 (E. Stanford, 1878)

A pictorial geography of the world : comprising a system of universal geography, popular and scientific ... : with a copious index, answering the purpose of a gazetteer - Goodrich, Samuel G. (Samuel Griswold), 1793 -1860 (Published by C.D. Strong, 1849)

Pleiocene fossils of South Carolina : containing descriptions and figures of the Polyparia, Echinodermata and Mollusca - Holmes, F. S. (Francis Simmons), 1815 -1882 (Russell & Jones, 1860)

The Pliocene deposits of Britain - Reid, Clement, 1853 -1916 (Printed for HMSO by Eyre and Spottiswoode, 1890)

The polar and tropical worlds : a description of man and nature in the polar and equatorial regions of the globe - Hartwig, G. (Georg), 1813 -1880 (Published by Bill, Nichols & Company, 1872)

The polar and tropical worlds : a description of man and nature in the polar and equatorial regions of the globe. Two volumes in one. Embracing also an account of the expeditions of all the Arctic explorers from the discovery of Iceland ... to Hall's last expedition ... together with the wonderful discoveries, and adventures of Agassiz, Livingstone, Wallace, and other distinguished travelers in the tropical countries - Hartwig, G. (Georg), 1813 -1880 (C. A. Nichols, 1875)

The polar and tropical worlds : a popular and scientific description of man and nature in the polar and equatorial regions of the globe : embracing the combined results of all the explorations, researches and discoveries of modern times - Hartwig, G. (Georg), 1813 -1880 (C.A. Nichols, 1876)

The polar and tropical worlds : a description of man and nature in the polar and equatorial regions of the globe - Hartwig, G. (Georg), 1813 -1880 (A. L. Bancroft, 1871)

The polar world: a popular description of man and nature in the Arctic and Antarctic regions of the globe - Hartwig, G. (Georg), 1813 -1880 (Harper & Brothers, 1869)

Popular natural history : a description of animal life, from the lowest forms up to man - Kingsley, J. S. (John Sterling), 1854 -1929 (Estes & Lauriat, 1890)

Popular Science Review (1869)

Post-Pleiocene fossils of South-Carolina - Holmes, F. S. (Francis Simmons), 1815 -1882 (Russell & Jones, 1860)

Pre-historic times - Lubbock, John, Sir, 1834 -1913 (Williams and Norgate, 1865)

Pre-historic times, as illustrated by ancient remains and the manners and customs of modern savages - Lubbock, John, Sir, 1834 -1913 (D. Appleton and company, 1892)

Le préhistorique antiquité de l'homme - Mortillet, Gabriel de, 1821 -1898 (C. Reinwald, 1883)

Preliminary list of the mammals of New York - Miller, Gerrit S. Jr. (Gerrit Smith), 1869 -1956 (University of the State of New York, 1899)

Proboscidea : a monograph of the discovery, evolution, migration and extinction of the mastodonts and elephants of the world - Osborn, Henry Fairfield, 1857 -1935 (Published on the J. Pierpont Morgan Fund by the trustees of the American Museum of Natural History, 1936)

Proceedings and transactions of the British Entomological and Natural History Society - British Entomological; Natural History Society. (British Entomological and Natural History Society, 1969)

Proceedings and transactions of the Royal Society of Canada. Délibérations et mémoires de la Société royale du Canada - Royal Society of Canada. (Société royale du Canada, 1914)

Proceedings - Dorset Natural History and Archaeological Society - Dorset Natural History; Archaeological Society. (1877)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1846)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1848)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1850)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1854)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1856)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1859)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1878)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1880)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1882)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1895)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1896)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1906)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1897)

Proceedings of the Boston Society of Natural History - Boston Society of Natural History. (Boston Society of Natural History, 1841)

Proceedings of the Boston Society of Natural History - Boston Society of Natural History. (Boston Society of Natural History, 1848)

Proceedings of the Boston Society of Natural History - Boston Society of Natural History. (Boston Society of Natural History, 1871)

Proceedings of the Boston Society of Natural History - Boston Society of Natural History. (Boston Society of Natural History, 1872)

Proceedings of the Boston Society of Natural History - Boston Society of Natural History. (Boston Society of Natural History, 1875)

Proceedings of the Boston Society of Natural History - Boston Society of Natural History. (Boston Society of Natural History, 1901)

Proceedings of the Canadian Institute - Glenny, George, 1793 -1874 (Canadian Institute, 1888)

Proceedings of the Canadian Institute - Glenny, George, 1793 -1874 (Canadian Institute, 1889)

Proceedings of the Entomological Society of Ontario - Entomological Society of Ontario. (Entomological Society of Ontario, 1963)

Proceedings of the Indiana Academy of Science - Indiana Academy of Science. ([s.n.], 1893)

Proceedings of the Indiana Academy of Science - Indiana Academy of Science. ([s.n.], 1894)

Proceedings of the Indiana Academy of Science - Indiana Academy of Science. ([s.n.], 1895)

The Proceedings of the Iowa Academy of Science - Iowa Academy of Science (The Academy, 1887)

The Proceedings of the Iowa Academy of Science - Iowa Academy of Science (The Academy, 1897)

Proceedings of the Natural History Society of Glasgow - Natural History Society of Glasgow. (Natural History Society of Glasgow, 1869)

Proceedings of the Natural History Society of Glasgow - Natural History Society of Glasgow. (Natural History Society of Glasgow, 1878)

Proceedings of the Natural History Society of Glasgow - Natural History Society of Glasgow. (Natural History Society of Glasgow, 1851)

Proceedings of the Newport Natural History Society - Newport Natural History Society. (The Society, 1888)

Proceedings of the Royal Irish Academy - Royal Irish Academy. (Royal Irish Academy, 1896)

Proceedings of the Royal Physical Society of Edinburgh - Royal Physical Society of Edinburgh. (The Society, 1863)

Proceedings of the section of sciences - Koninklijke Akademie van Wetenschappen (Netherlands) (Johannes Müller, 1916)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1883)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1884)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1886)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1887)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1898)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1916)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1860)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1862)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1868)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1875)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1880)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1890)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1891)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1893)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1894)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1908)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1911)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1922)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1923)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1830)

Procès-verbaux - Société Linnéenne de Bordeaux. (1933)

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Procès-verbaux - Société Linnéenne de Bordeaux. (1943)

Procès-verbaux - Société Linnéenne de Bordeaux. (1946)

Propalaeocastor (Rodentia, Mammalia) from the early Oligocene of Burqin Basin, Xinjiang - Ye, Jie. (American Museum of Natural History, 2004)

Protected Landscapes: experience around the world. Prepared for the International Symposium on Protected Landscapes, Grange-over-Sands, England 5-10 October 1987 (1987)

Protecting Nature: regional reviews of protected areas - McNeely, J.A. (IUCN, 1994)

Provincial Museum of Natural History and Enthnology - British Columbia Provincial Museum. (Printed by Richard Wolfenden, 1909)

Provincial Museum of Natural History and Ethnology - British Columbia Provincial Museum. (Printed by R. Wolfenden, 1909)

Publication. Field Columbian Museum. Geological series - Field Museum of Natural History. (The Museum, 1899)

Publications in zoology = Publications en zoologie - National Museum of Natural Sciences (Canada) (National Museums of Canada, National Museum of Natural Sciences, 1975)

Published papers and addresses of John Campbell Merriam ... - Merriam, John C. (John Campbell), 1869 -1945 (The Carnegie institution of Washington, 1938)

The Quarterly journal of science (J. Churchill and Sons, etc, 1865)

The Quarterly journal of the Geological Society of London - Geological Society of America. (1859)

The Quarterly journal of the Geological Society of London - Geological Society of America. (1867)

The Quarterly journal of the Geological Society of London - Geological Society of America. (1869)

The Quarterly journal of the Geological Society of London - Geological Society of America. (1872)