Proceedings of the Royal Society of Edinburgh - Royal Society of Edinburgh. (Royal Society of Edinburgh, 1892)

Proceedings of the Royal Society of Edinburgh - Royal Society of Edinburgh. (Royal Society of Edinburgh, 1903)

Proceedings of the Royal Society of Edinburgh - Royal Society of Edinburgh. (Royal Society of Edinburgh, 1910)

Proceedings of the Royal Society of Edinburgh - Royal Society of Edinburgh. (Royal Society of Edinburgh, 1911)

Proceedings of the Royal Society of Edinburgh - Royal Society of Edinburgh. (Royal Society of Edinburgh, 1913)

The Proceedings of the Royal Society of Queensland - Royal Society of Queensland. (Royal Society of Queensland], 1916)

The Proceedings of the Royal Society of Queensland - Royal Society of Queensland. (Royal Society of Queensland], 1940)

The Proceedings of the Royal Society of Queensland - Royal Society of Queensland. (Royal Society of Queensland], 1947)

The Proceedings of the Royal Society of Queensland - Royal Society of Queensland. (Royal Society of Queensland], 1950)

The Proceedings of the Royal Society of Queensland - Royal Society of Queensland. (Royal Society of Queensland], 2020)

The Proceedings of the Royal Society of Queensland - Royal Society of Queensland. (Royal Society of Queensland], 2021)

The Proceedings of the Royal Society of Queensland - Royal Society of Queensland. (Royal Society of Queensland], 2022)

Proceedings of the Royal Society of Victoria. New series - Royal Society of Victoria (Melbourne, Vic.) (Stillwell and Co, 1961)

Proceedings of the Royal Society of Victoria. New series - Royal Society of Victoria (Melbourne, Vic.) (Stillwell and Co, 1971)

Proceedings of the Royal Society of Victoria. New series - Royal Society of Victoria (Melbourne, Vic.) (Stillwell and Co, 1995)

Proceedings of the Royal Zoological Society of New South Wales - Royal Zoological Society of New South Wales. (The Society, 1955)

Proceedings of the San Diego Society of Natural History - San Diego Society of Natural History. (San Diego Society of Natural History, 1999)

Proceedings of the second Endangered Species and Prairie Conservation Workshop, January 1989 at the Saskatchewan Museum of Natural History, Regina, Saskatchewan - Smith, Hugh C. (Natural History Section, Provincial Museum of Alberta, 1991)

Proceedings of the Second Western Atlantic Turtle Symposium, October 12-16, 1987, Mayaguez, Puerto Rico - U.S. Fish; Wildlife Service (U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Southeast Fisheries Center, Panama City Laboratory, 1989)

Proceedings of the section of sciences - Koninklijke Akademie van Wetenschappen (Netherlands) (Johannes Müller, 1918)

Proceedings of the section of sciences - Koninklijke Akademie van Wetenschappen (Netherlands) (Johannes Müller, 1922)

Proceedings of the section of sciences - Koninklijke Akademie van Wetenschappen (Netherlands) (Johannes Müller, 1923)

Proceedings of the Southern Pasture and Forage Crop Improvement Conference - United States. Agricultural Research Service. (Agricultural Research Service (Southern Region), U.S. Dept. of Agriculture, 1974)

Proceedings of the third Prairie Conservation and Endangered Species Workshop : February 1992 at Brandon University, Brandon, Manitoba - Provincial Museum of Alberta. (Curatorial Section, Provincial Museum of Alberta, 1992)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1897)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1904)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1920)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1921)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1926)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1934)

Proceedings of the Yorkshire Geological and Polytechnic Society - Yorkshire Geological; Polytechnic Society. (Yorkshire Geological and Polytechnic Society, 1891)

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.], 1870)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1884)

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.], 1920)

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.], 1861)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1881)

Proceedings of the Zoological Society of London : an index to the artists, 1848-1900 - Johnson, Bryan R., 1956 - (Garland, 1986)

Procès-verbaux - Société Linnéenne de Bordeaux. (1929)

Procès-verbaux - Société Linnéenne de Bordeaux. (1941)

Procès-verbaux - Société Linnéenne de Bordeaux. (1947)

The process of evolution - Ehrlich, Paul R. (McGraw-Hill, 1963)

Progress of science in the century - Thomson, J. Arthur (John Arthur), 1861 -1933 (W. & R. Chambers, Limited, 1908)

Progress of science in the century - Thomson, J. Arthur (John Arthur), 1861 -1933 (Linscott Pub. Co, 1906)

Progress of science in the century - Thomson, J. Arthur (John Arthur), 1861 -1933 (Linscott, 1903)

Project development workshop: integrating biodiversity information management into the curricula of wildlife training institutions - Kanyamibwa, Sam (WCMC, 1999)

Protecting ecosystems in Alberta : a survey of government mechanisms - Alberta Conservation Strategy Project. (Environment Council of Alberta, 1992)

Protection of global biodiversity : converging strategies - Duke University Press. (Duke University Press, 1998)

The Prothonotary - Buffalo Ornithological Society. (Buffalo Ornithological Society, 1950)

Protozoa - Bhatia, B. L. (Bihari Lal), 1884 -1941 (Taylor and Francis, 1936)

Protozoa ... - Bhatia, B. L. (Bihari Lal), 1884 -1941 (Taylor and Francis, 1936)

Protozoa ... - Bhatia, B. L. (Bihari Lal), 1884 -1941 (Taylor and Francis, 1938)

Protozoan parasites of domestic animals and of man - Levine, Norman D. (Burgess Pub. Co, 1961)

Psyche - Cambridge Entomological Club. (Cambridge Entomological Club, 1930)

Psyche - Cambridge Entomological Club. (Cambridge Entomological Club, 2009)

Psyche - Cambridge Entomological Club. (Cambridge Entomological Club, 2012)

Pteridologist - British Pteridological Society. (The Society, 1990)

Pteridologist - British Pteridological Society. (The Society, 2002)

Pu tong di zhi xue yuan li 普通地理学原理 - Kalesnik, S. V. (Stanislav Vikentʹevich) 1901 -1977 (di zhi chu ban she 地质出版社, 1954)

pu tong sheng wu xue zhuan ti hui bian - zhong yang guang bo dian shi da xue sheng wu xue zu (bei jing da xue chu ban she, 1981)

pu tong sheng wu xue zhuan ti hui bian 01 - zhong yang guang bo dian shi da xue (bei jing da xue chu ban she, 1981)

Publicações Avulsas do Museu Paraense Emílio Goeldi (Museu Paraense Emílio Goeldi, 1973)

Publication. Field Museum of Natural History. Anthropological series - Field Museum of Natural History. (The Museum, 1934)

Publication. Field Museum of Natural History. Anthropological series - Field Museum of Natural History. (The Museum, 1937)

Publication. Field Museum of Natural History. Anthropological series - Field Museum of Natural History. (The Museum, 1939)

Publication. Field Museum of Natural History. Anthropological series - Field Museum of Natural History. (The Museum, 1940)

Publication. Field Museum of Natural History. Anthropological series - Field Museum of Natural History. (The Museum, 1949)

Publication. Field Museum of Natural History. Geological series - Field Museum of Natural History. (The Museum, 1938)

Publication. Field Museum of Natural History. Geological series - Field Museum of Natural History. (The Museum, 1939)

Publications - Ontario Fisheries Research Laboratory. (University of Toronto Press, 1922)

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

Quaestiones entomologicae - University of Alberta. Dept. of Entomology. (Dept. of Entomology, University of Alberta, 1975)