Palaeontographica (Theodor Fischer, 1921)

Palaeontographica Americana - Paleontological Research Institution (Ithaca, N.Y.) (Paleontological Research Institution, 1976)

Palaeontological memoirs and notes of H. Falconer, with a biographical sketch of the author. Vol. I, II - Falconer, Hugh, 1808 -1865 (1868)

Palaeontology - Palaeontological Association (Palaeontological Association, 1970)

Palaeontology - Palaeontological Association (Palaeontological Association, 1987)

Palæontology, invertebrate - Woods, Henry, 1868 -1952 (The University press, 1909)

Palæontology of the upper Missouri: a report upon collections made principally by the expeditions under command of Lieut. G. K. Warren, U.S. Top. Engrs., in 1855 and 1856. Invertebrates - Hayden, F. V. (Ferdinand Vandeveer), 1829 -1887 (Smithsonian Institution, 1865)

Palaozoologie : Entwurf einer systematischen Darstellung der Fauna der Vorwelt - Giebel, C. (Christoph), 1820 -1881 (Nulandt'sche buchandlung (L. Garcke), 1846)

Paleontological research - Nihon Koseibutsu Gakkai (Palaeontological Society of Japan, 2000)

Paleontological research - Nihon Koseibutsu Gakkai (Palaeontological Society of Japan, 2001)

Paléontologie de la France - Archiac, vicomte d' (Etienne Jules Adolphe Desmier), 1802 -1868 (Imprimerie impériale, 1868)

Paléontologie française : description zoologique et géologique de tous les animaux mollusques et rayonnés fossiles de France : comprenant leur application à la reconnaissance des couches - Orbigny, Alcide Dessalines d', 1802 -1857 (Chez l'auteur, 1840)

Paleontology of the Coalinga district, Fesno and Kings counties, California - Arnold, Ralph, 1875 -1961 (Govt. Print. Off, 1909)

The Paleozoic fishes of North America / by John Strong Newberry - Newberry, J. S. (John Strong), 1822 -1892 (Govt. print. off, 1889)

The Paleozoic fishes of North America - Newberry, J. S. (John Strong), 1822 -1892 (G.P.O, 1889)

Palestine Exploration Fund : quarterly statement - Palestine Exploration Fund. (The Fund, 1903)

Pamietnik Fizyjograficzny (Druk K. Kowalewskiego, 1890)

Pamietnik Fizyjograficzny (Druk K. Kowalewskiego, 1918)

Papéis avulsos do Departamento de Zoologia - São Paulo Departamento de Zoologia (A Secretaria, 1943)

Papers and proceedings of the Royal Society of Tasmania - Royal Society of Tasmania. (The Society, 1879)

Papers and proceedings of the Royal Society of Tasmania - Royal Society of Tasmania. (The Society, 1886)

Papers and proceedings of the Royal Society of Tasmania - Royal Society of Tasmania. (The Society, 1898)

Papers and proceedings of the Royal Society of Tasmania - Royal Society of Tasmania. (The Society, 1900)

Papers on Unionidae - Ortmann, Arnold E. 1863 -1927 (1908)

Le parasitisme et la symbiose - Caullery, Maurice, 1868 -1958 (Doin, 1922)

Pearls & parasites - Shipley, A. E. Sir, (Arthur Everett), 1861 -1927 (Murray, 1908)

Pearls and pearling life - Streeter, Edwin W. (Edwin William) (G. Bell & sons, 1886)

Pearls - Dakin, William J. (William John), 1883 -1950 (University press, 1913)

Pelagos, saggi sulla vita e sui prodotti del mare - Giglioli, Enrico Hillyer, 1845 -1909 (Tipografia del R. Istituto de' Sordo-Muti, 1884)

The Pelecypoda of the Miocene of Maryland - Glenn, Leonidas Chalmers, 1871 - (1904)

Periódico zoológico - Sociedad Entomológica Argentina. (Sociedad Entomica Argentina, 1874)

Die Perlmuscheln und ihre Perlen. Naturwissenschaftlich und geschichtlich mit Berücksichtigung der Perlengewässer Bayerns - Hessling, Theodor von, 1816 -1899 (W. Engelmann, 1859)

The Permian of Mongolia : a report on the Permian fauna of the Jisu Honguer limestone of Mongolia and its relations to the Permian of other parts of the world - Berkey, Charles Peter, 1867 -1955 (American Museum of Natural History, 1931)

Pesticides monitoring journal - United States. Chemical Information Division. (Technical Services Division, Office of Pesticide Programs, U.S. Environmental Protection Agency, 1975)

Pesticides monitoring journal - United States. Chemical Information Division. (Technical Services Division, Office of Pesticide Programs, U.S. Environmental Protection Agency, 1977)

Pflanzenphysiologie; Versuche und Beobachtungen an böheren und niederen Pflanzen einschliesslich Bakteriologie und Hydrobiologie mit Planktonkunde - Kolkwitz, R. (Richard), 1873 -1956 (G. Fischer, 1922)

Pflügers Archiv für die gesamte Physiologie des Menschen und der Tiere (M. Hager, 1910)

Pflügers Archiv für die gesamte Physiologie des Menschen und der Tiere (M. Hager, 1917)

Pflügers Archiv für die gesamte Physiologie des Menschen und der Tiere (M. Hager, 1919)

Pflügers Archiv für die gesamte Physiologie des Menschen und der Tiere (M. Hager, 1920)

Pflügers Archiv für die gesamte Physiologie des Menschen und der Tiere (M. Hager, 1921)

Pflügers Archiv für die gesamte Physiologie des Menschen und der Tiere (M. Hager, 1922)

Pflügers Archiv für die gesamte Physiologie des Menschen und der Tiere (M. Hager, 1911)

Pharmaceutical journal and transactions - Pharmaceutical Society of Great Britain. (J. & A. Churchill, 1880)

Pharmaceutical journal and transactions - Pharmaceutical Society of Great Britain. (J. & A. Churchill, 1883)

The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1915)

The Philosophical magazine and journal : comprehending various branches of science, the liberal and fine arts, agriculture, manufactures, and commerce (R. Taylor, 1822)

The Philosophical magazine : or Annals of chemistry, mathematics, astronomy, natural history and general science (Richard Taylor and Co, 1830)

Philosophical transactions of the Royal Society of London - Royal Society (Great Britain) (Royal Society of London, 1839)

Philosophical transactions of the Royal Society of London - Royal Society (Great Britain) (Royal Society of London, 1840)

Philosophical transactions of the Royal Society of London - Royal Society (Great Britain) (Royal Society of London, 1854)

Philosophical transactions of the Royal Society of London - Royal Society (Great Britain) (Royal Society of London, 1886)

The philosophy of zoology, or, A general view of the structure, functions, and classification of animals - Fleming, John, 1785 -1857 (Hurst, Robinson & Co, 1822)

The philosophy of zoology; or, A general view of the structure, functions, and classification of animals - Fleming, John, 1785 -1857 (A. Constable, 1822)

Photographic conchology, a second, or photographic series, of the Conchological miscellany. The photographs, forming a sequence to the Index testaceologicus (Hanley's edition), illustrative of species either not delineated in the more common works, or distinguished for rarity - Wood, W. (William), 1774 -1857 (Willis and Sotheran, 1863)