Palaeontographica (Theodor Fischer, 1871)

Palaeontographica (Theodor Fischer, 1876)

Palaeontographica (Theodor Fischer, 1880)

Palaeontographica (Theodor Fischer, 1883)

Palaeontographica (Theodor Fischer, 1887)

Palaeontographica (Theodor Fischer, 1897)

Palaeontographica (Theodor Fischer, 1901)

Palaeontology - Palaeontological Association (Palaeontological Association, 1957)

Palaeontology - Palaeontological Association (Palaeontological Association, 1985)

Palaeontology - Palaeontological Association (Palaeontological Association, 1994)

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

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

Paleóntologie des mollusques terrestres et fluviales de l'Algerie - Bourguignat, J. R. (Jules René), 1829 -1892 (Ballier̀e et fils, 1862)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1926)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1969)

Papers and proceedings of the Royal Society of Tasmania - Royal Society of Tasmania. (The Society, 1878)

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, 1889)

Papers and proceedings of the Royal Society of Tasmania - Royal Society of Tasmania. (The Society, 1890)

Papers and proceedings of the Royal Society of Tasmania - Royal Society of Tasmania. (The Society, 1892)

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, 1921)

Papers in marine biology and oceanography (Pergamon Press, 1955)

Pennsylvanian (Morrowan) gastropods from the Magdelena Formation of the Hueco Mountains, Texas - Batten, Roger Lyman (American Museum of Natural History, 1995)

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

Petites nouvelles entomologiques (E. Deyrolle, 1869)

Petrefactenkunde Deutschlands / von Fr. Aug. Quenstedt - Quenstedt, Fr. Aug. von (Friedrich August), 1809 -1889 (L.F. Fues, 1884)

Petrefactenkunde Deutschlands / von Fr. Aug. Quenstedt - Quenstedt, Fr. Aug. von (Friedrich August), 1809 -1889 (L.F. Fues, 1881)

Philosophical transactions of the Royal Society of London - Royal Society (Great Britain) (Royal Society of London, 1879)

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

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

Physis - Sociedad Argentina de Ciencias Naturales. (Asociación Argentina de Ciencias Naturales [etc.], 1921)

A plain and easy account of the land and fresh-water mollusks of Great Britain : containing descriptions, figures, and a familiar account of the habits of each species - Tate, Ralph, 1840 -1901 (R. Hardwicke, 1866)

A plain and easy account of the land and freshwater mollusks of Great Britain - Vincent Brooks, Day & Son, (R. Hardwicke, 1866)

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

A pocket guide to the British non-marine Mollusca, including fossil forms which occur in the post-pliocene deposits, excepting the forest bed series - Swanton, Ernest W. (C. Mosley, 1906)

A pocket list of British marine Mollusca - Bailey, George. (Tindall & co., printers, 1887)

Poirieria - Auckland Institute; Museum. Conchology Section. (Auckland Museum, Conchology Section, 1970)

Poirieria - Auckland Institute; Museum. Conchology Section. (Auckland Museum, Conchology Section, 1967)

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

A practical handbook of British birds - Witherby, H. F. (Harry Forbes), 1873 -1944 (Witherby, 1921)

Prehistoric Europe : a geological sketch - Darwin, Charles, 1809 -1882 (Edward Stanford, 1881)

Prehistoric Europe, a geological sketch - Geikie, James, 1839 -1915 (E. Stanford, 1881)

Preliminary catalogue of the marine mollusca of the Pacific Coast of Canada, with notes upon their distribution - Taylor, George W. (s.n, 1895)

Die preussische expedition nach Ost-Asien : nach amtlichen quellen. V. 1, Zoologischer theil - Martens, Eduard von, 1831 -1904 (R. v. Decker, 1876)

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

Proceedings - Dorset Natural History; Archaeological Society.

Proceedings and Transactions of the Croydon Microscopical & Natural History Club - Croydon Microscopical; Natural History Club. (1881)

Proceedings and Transactions of the Croydon Microscopical & Natural History Club - Croydon Microscopical; Natural History Club. (1901)

Proceedings and transactions of the Croydon Natural History and Scientific Society - Croydon Natural History; Scientific Society. (Croydon Natural History and Scientific Society, 1904)

Proceedings and transactions of the Croydon Natural History and Scientific Society - Croydon Natural History; Scientific Society. (Croydon Natural History and Scientific Society, 1905)

Proceedings and transactions of the Liverpool Biological Society - Liverpool Biological Society. (The Society, 1890)

Proceedings and transactions of the Liverpool Biological Society - Liverpool Biological Society. (The Society, 1919)

Proceedings and transactions of the Natural History Society of Glasgow - Natural History Society of Glasgow. (The Society, 1886)

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, 1895)

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, 1883)

Proceedings - Cambridge Philosophical Society. Mathematical and physical sciences - Cambridge Philosophical Society. (Cambridge Philosophical Society [etc.], 1902)

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, 1872)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1888)

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, 1891)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1897)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1922)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1913)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1841)

Proceedings of the American Academy of Arts and Sciences - American Academy of Arts; Sciences. (Metcalf and Co, 1865)

Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledge - American Philosophical Society. (American Philosophical Society, 1920)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1971)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1990)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 2002)

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

Proceedings of the Boston Society of Natural History - Boston Society of Natural History. (Boston Society of Natural History, 1899)

Proceedings of the Bristol Naturalists' Society - Bristol Naturalists' Society (Bristol, England) (Bristol Naturalists' Society, 1935)