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Proceedings of the 6th International Conference on Coelenterate Biology : the Leeuwenhorst, Noordwijkerhout, the Netherlands, 16-21 July 1995 - Ofwegen, L. P. van (Leendert P.), 1953 - (Nationaal Natuurhistorisch Museum, 1997)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1887)

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, 1904)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1907)

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 Philosophical Society held at Philadelphia for promoting useful knowledge - American Philosophical Society. (American Philosophical Society, 1892)

Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledge - American Philosophical Society. (American Philosophical Society, 1903)

Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledge - American Philosophical Society. (American Philosophical Society, 1908)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1994)

Proceedings of the Bournemouth Natural Science Society - Bournemouth Natural Science Society (1911)

Proceedings of the Bristol Naturalists' Society - Bristol Naturalists' Society (Bristol, England) (Bristol Naturalists' Society, 1873)

Proceedings of the Indiana Academy of Science - Indiana Academy of Science. ([s.n.], 1900)

Proceedings of the Linnean Society of London - Linnean Society of London. (Published for the Linnean Society of London by Academic Press [etc.], 1848)

Proceedings of the Linnean Society of New South Wales - Linnean Society of New South Wales. (Linnean Society of New South Wales, 1970)

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Proceedings of the Linnean Society of New South Wales - Linnean Society of New South Wales. (Linnean Society of New South Wales, 1998)

Proceedings of the Nova Scotian Institute of Science - Nova Scotian Institute of Science. (Nova Scotian Institute of Science, 1987)

Proceedings of the Royal Irish Academy - Royal Irish Academy. (Royal Irish Academy, 1893)

Proceedings of the Royal Irish Academy - Royal Irish Academy. (Royal Irish Academy, 1912)

Proceedings of the Royal Society of London - Royal Society (Great Britain) (The Society, 1854)

Proceedings of the Royal Society of London - Royal Society (Great Britain) (The Society, 1856)

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The Proceedings of the Royal Society of Queensland - Royal Society of Queensland. (Royal Society of Queensland], 1889)

The Proceedings of the Royal Society of Queensland - Royal Society of Queensland. (Royal Society of Queensland], 1905)

Proceedings of the Royal Society of Victoria. New series - Royal Society of Victoria (Melbourne, Vic.) (Stillwell and Co, 1978)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1914)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1915)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1906)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1920)

Progress in sport fishery research - United States. Bureau of Sport Fisheries; Wildlife. Division of Fishery Research. (U.S. Dept. of the Interior, Bureau of Sport Fisheries and Wildlife, Fish and Wildlife Service, 1969)

Protozoology - Kudo, Richard R. (Richard Roksabro), 1886 -1967 (C. C. Thomas, 1954)

Protozoology - Kudo, Richard R. (Richard Roksabro), 1886 -1967 (C.C. Thomas, 1946)

Protozoology - Kudo, Richard R. (Richard Roksabro), 1886 -1967 (Thomas, 1939)

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qing zang gao yuan yan jiu heng duan shan kao cha zhuan ji 2 - Zhongguo ke xue yuan. Qing zang gao yuan zong he ke xue kao cha dui (bei jing ke xue ji shu chu ban she, 1986)

A quantitative and statistical study of the plankton of the San Joaquin River and its tributaries in and near Stockton, California, in 1913 - Allen, Winfred Emory, 1873 -1947 (University of California Press, 1920)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1856)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1872)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1875)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1884)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1916)

Raboty Volzhskoĭ biologicheskoĭ stant͡sii = Arbeiten der Biologischen Wolga-Station - Volzhskai͡a biologicheskai͡a stant͡sii͡a (Stant͡sii͡a, 1912)

Raboty Volzhskoĭ biologicheskoĭ stant͡sii = Arbeiten der Biologischen Wolga-Station - Volzhskai͡a biologicheskai͡a stant͡sii͡a (Stant͡sii͡a, 1913)

Recent advances in cytology - Darlington, C. D. (Cyril Dean), 1903 - (P. Blakiston's son & co., inc, 1937)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1907)

Report of the Michigan Academy of Science - Michigan Academy of Science. Council. (The Academy, 1913)

Report upon the fauna of Liverpool Bay and the neighboring seas - Herdman, W. A. Sir, (William Abbott), 1858 -1924 (Longmans, Green, 1895)

Reports on the results of dredging, under the direction of L. F. Pourtalès, during the years 1868-1870, and of Alexander Agassiz in the Gulf of Mexico (1877-78) and in the Caribbean Sea (1878-79), in the U.S. Coast Survey steamer "Blake," Lieut.-Com. C. D. Sigsbee, U.S.N., and Commander J. R. Bartlett, U.S.N., commanding. 31, Report on the annelids / by E. Ehlers - Ehlers, Ernst Heinrich, 1835 -1925 (Printed for the Museum, 1887)

Resultate der Wissenschaftlichen Erforschung des Balatonsees - Hungary. Földmm̋uvelésügyi Minisztérium. (E. Hölzel, 1897)

Revue algologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1957)

Revue biologique du nord de la France (Le Bigot, 1893)

Revue des sciences naturelles appliquées - Société nationale d'acclimatation de France (La Société, 1889)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1894)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1896)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1898)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1900)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1910)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1914)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1950)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1958)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1966)