Phyllostomid bats of Colombia : annotated checklist, distribution, and biogeography - Jiménez-Ortega, Alex Mauricio (Museum of Texas Tech University, 2009)

Phylogenetic analyses of the bat subfamily Stenodermatinae (Mammalia:Chiroptera) - Owen, Robert D. (Texas Tech University Press, 1987)

Phylogenetic relationships of mormoopid bats (Chiroptera, Mormoopidae) based on morphological data - Simmons, Nancy B. (American Museum of Natural History, 2001)

Phylogenetic relationships of the enigmatic harpy fruit bat, Harpyionycteris (Mammalia, Chiroptera, Pteropodidae) - Simmons, Nancy B. (American Museum of Natural History, 2006)

The phylogenetic resolving power of discrete dental morphology among extant hedgehogs and the implications for their fossil record - Gould, Gina C. (American Museum of Natural History, 2001)

Phylogenetic systematics of slit-faced bats (Chiroptera, Nycteridae) : based on hyoid and other morphology - Griffiths, Thomas Alan (American Museum of Natural History, 1994)

Phylogenetics of the fruit-eating bats (Phyllostomidae: Artibeina) inferred from mitochondrial DNA sequences - Hoofer, Steven R. (Museum of Texas Tech University, 2008)

Phylogeny of phyllostomid bats (Mammalia, Chiroptera) : data from diverse morphological systems, sex chromosomes, and restriction sites - Wetterer, Andrea L. (American Museum of Natural History, 2000)

Phylogeny of plecotine bats (Chiroptera, "Vespertilionidae") : summary of the evidence and proposal of a logically consistent taxonomy - Frost, Darrel R. (American Museum of Natural History, 1992)

The physiology of reproduction - Marshall, F. H. A. (Francis Hugh Adam), 1878 -1949 (Longmans, Green and Co, 1910)

The physiology of reproduction - Marshall, F. H. A. (Francis Hugh Adam), 1878 -1949 (Longmans, Green, 1910)

Physis - Sociedad Argentina de Ciencias Naturales. (Asociación Argentina de Ciencias Naturales [etc.], 1915)

Physis : publicació destinada als amics de la naturalesa (Impr. de Francisco X. Altés, 1918)

The Picrodontidae, a family of early primates - Szalay, Frederick S. (American Museum of Natural History, 1968)

Pleistocene edentates of the West Indies - Couto, Carlos de Paula. (American Museum of Natural History, 1967)

A Pliocene chalicothere from Nebraska, and the distribution of chalicotheres in the late Tertiary of North America - Skinner, Morris F. (American Museum of Natural History, 1968)

Plumas de multitudes : integración comunitaria en el estudio y monitoreo de aves en México - Berlanga, Humberto A. (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2015)

A pocket list of the mammals of eastern Massachusetts, with special reference to Essex County - Brown, C. Emerson, 1869 -1949 (Peabody Academy of Science, 1913)

The Popular educator: a complete encyclopaedia of elementary, advanced and technical education (Cassell, 1888)

The Popular science monthly - Harry Houdini Collection (Library of Congress) (Popular Science Pub. Co., etc, 1876)

The Popular science monthly - Harry Houdini Collection (Library of Congress) (Popular Science Pub. Co., etc, 1887)

Popular Science Review (1876)

Popular Science Review (1878)

Population ecology of the little brown bat, Myotis lucifugus, in Indiana and north-central Kentucky - American Society of Mammalogists. (American Society of Mammalogists, 1976)

Population studies of myotis lucifugus (chiroptera: vespertilionidae) in Ontario - Royal Ontario Museum. (Royal Ontario Museum, 1970)

Postilla - Peabody Museum of Natural History. (Peabody Museum of Natural History, 1957)

Postilla - Peabody Museum of Natural History. (Peabody Museum of Natural History, 1979)

Potential wildlife-highway interactions at select mile-markers along Montana Department of Transportation routes an ArcView GIS analysis - Irby, Lynn R. (Fish and Wildlife Management Program, Montana State University, 2001)

Practical taxidermy : a manual of instruction to the amateur in collecting, preserving, and setting up natural history specimens of all kinds : to which is added a chapter upon the pictorial arrangement of museums - Browne, Montagu (L. Upcott Gill, 1884)

Practical zoölogy : an elementary text-book treating of the structure, life, history, and relations of animals - Davison, Alvin, 1868 -1915 (American Book Company, 1906)

A preliminary catalogue of the flowering plants and higher cryptogams growing without cultivation within thirty miles of Hanover, N.H., to which is appended a list of the vertebrates of the same region - Jesup, Henry G. (Henry Griswold), 1826 -1903 (N.A. McClary, 1882)

Presence of Stenoderma rufum beyond the Puerto Rican bank - Kwiecinski, Gary George, 1952 - (Museum of Texas Tech University, 2007)

The present status of natural science in Manitoba and the Northwest - Historical; Scientific Society of Manitoba. (Manitoba Free Press, 1900)

Pretty Tree Bench vegetation project : final environmental impact statement - Escalante Ranger District (Utah) (U.S. Dept. of Agriculture, Forest Service, Intermountain Region, Dixie National Forest, Escalante Ranger District, 2000)

Primae lineae systematis naturæ : nexui naturali omnium evolutionique progressivae per nixus reascendentes superstructi - Gori͡aninov, Pavel Fedorovich, 1796 -1865 (Typis Karoli Krajanis, 1834)

The primary factors of organic evolution - Cope, E. D. (Edward Drinker), 1840 -1897 (The Open court publishing company, 1904)

The primary factors of organic evolution - Cope, E. D. (Edward Drinker), 1840 -1897 (Open Court Pub. Co, 1904)

The primary factors of organic evolution - Cope, E. D. (Edward Drinker), 1840 -1897 (The Open Court Publishing Company, 1896)

Primera reunión del Congreso científico latino americano celebrada en Buenos Aires del 10 al 20 de abril de 1898 por iniciativa de la Sociedad científica argentina... - Congreso Científico Latino Americano Buenos Aires, Argentina) 1898 - (Compañia sud-americana de billetes de banco, 1899)

Primitive Paleocene and Eocene Apatemyidae (Mammalia, Insectivora) and the primate-insectivore boundary - McKenna, Malcolm C. (American Museum of Natural History, 1963)

Principles of animal biology - Shull, A. Franklin (Aaron Franklin), 1881 -1961 (McGraw-Hill, 1920)

Principles of animal ecology - Allee, W. C. (Warder Clyde), 1885 -1955 (Saunders Co, 1949)

The principles of biology, by J. I. Hamaker - Hamaker, John Irvin, 1869 - (P. Blakiston, 1913)

The principles of biology - Hamaker, J. I. (John Irvin), 1869 - (P. Blakiston's Sons & Co, 1913)

Principles of economic zoölogy - Daugherty, L. S. (Lewis Sylvester) 1857 -1919 (W. B. Saunders Company, 1917)

Principles of economic zoo̤logy - Daugherty, L. S. (Lewis Sylvester) 1857 -1919 (W.B. Saunders, 1915)

Principles of economic zoölogy - Daugherty, L. S. (Lewis Sylvester) 1857 -1919 (W. B. Saunders company, 1912)

Principles of economic zoölogy - Daugherty, L. S. (Lewis Sylvester) 1857 -1919 (W. B. Saunders, 1917)

Principles of economic zoölogy - Daugherty, L. S. (Lewis Sylvester) 1857 -1919 (W.B. Saunders, 1912)

Principles of modern biology - Marsland, Douglas, 1899 - (Holt, Rinehart and Winston, 1899)

Principles of stratigraphy - Grabau, Amadeus W. (Amadeus William), 1870 -1946 (A.G. Seiler and company, 1913)

Principles of zoölogy : a guide for beginners - Schiedt, Richard Francis Conrad, 1859 -1951 (Examiner Printing House, 1892)

Prirodoslovna istraživanja - Jugoslavenska akademija znanosti i umjetnosti. (1913)

Problems in biology - Hunter, George W. (George William), 1873 -1948 (American Book Co, 1931)

Problems in biology - Hunter, George W. (George William), 1873 -1948 (American book company, 1935)

Le procès de la nomenclature botanique et zoologique - Saint-Lager, Jean Baptiste, 1825 -1912 (J.-B. Baillière, 1886)

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Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1877)

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, 1886)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1889)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1894)

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, 1897)