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Proceedings of the Royal Society of Edinburgh - Royal Society of Edinburgh. (Royal Society of Edinburgh, 1887)

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Proceedings of the Royal Society of London Series B Containing papers of a Biological character - Royal Society (Great Britain) (Printed for the Royal Society and sold by Harrison & Sons, 1919)

Proceedings of the Royal Society of London - Royal Society (Great Britain) (The Society, 1897)

The Proceedings of the Royal Society of Queensland - Royal Society of Queensland. (Royal Society of Queensland], 1927)

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Proceedings of the Royal Society of Victoria. New series - Royal Society of Victoria (Melbourne, Vic.) (Stillwell and Co, 1926)

Proceedings of the Royal Society of Victoria. New series - Royal Society of Victoria (Melbourne, Vic.) (Stillwell and Co, 1927)

Proceedings of the Royal Society of Victoria. New series - Royal Society of Victoria (Melbourne, Vic.) (Stillwell and Co, 1930)

Proceedings of the Royal Society of Victoria. New series - Royal Society of Victoria (Melbourne, Vic.) (Stillwell and Co, 1962)

Proceedings of the Royal Society of Victoria. New series - Royal Society of Victoria (Melbourne, Vic.) (Stillwell and Co, 1969)

Proceedings of the Royal Society of Victoria. New series - Royal Society of Victoria (Melbourne, Vic.) (Stillwell and Co, 1994)

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Proceedings of the semi-centennial anniversary of the Torrey botanical club, October 18, 19 and 20, 1917 - Torrey Botanical Club. (1918)

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 International Symposium on Biological Control of Arthropods : Christchurch, New Zealand, February 8-13, 2009 - Mason, P G (USDA Forest service, 2009)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1960)

Proceedings-Symposium on Plant-Herbivore Interactions : Snowbird, Utah, August 7-9, 1985 - Intermountain Research Station (Ogden, Utah) (Intermountain Research Station, Forest Service, U.S. Dept. of Agriculture, 1987)

Prodrome de la flore Belge - De Wildeman, Emile 1866 -1947 (Alfred Castaigne, 1898)

Prodrome de la flore Belge - De Wildeman, Emile 1866 -1947 (Alfred Castaigne, 1899)

Prodrome de la flore belge - Wildeman, E. de (Emile), 1866 -1947 (A. Castaigne, 1898)

Prodrome de la flore du Grand-Duché de Luxembourg - Koltz, J. P. J. (Jean Pierre Joseph), 1827 -1907 (L. Schamburger, 1873)

Prodromus der Flora von Böhmen. Enthaltend die Beschreibungen und Verbreitungsangaben der wildwachsenden und im Freien kultivirten Gefässpflanzen des Königreiches ... - Celakovský, Ladislav Josef, 1834 -1902 (Selbstverlag des Comité's, 1867)

Prodromus florae Batavae - Nederlandsche Botanische Vereeniging, Leyden. (F.E. MacDonald, 1902)

Prodromus florae Batavae - Dozy, F. (Frans), 1807 -1856 (Sumptibus Societatis, apud J. Hazenberg, 1850)

Prodromus florae batavae; nieuwe lijst der Nederlandsche phanerogamen en vaatkryptogamen - Nederlandsche Botanische Vereeniging (F.E. Macdonald, 1901)

Prodromus florae Hispanicae :seu Synopsis methodica omnium plantarum in Hispania, sponte nascentium vel frequentius cultarum quae innotuerunt - Willkomm, Moritz, 1821 -1895 (E. Schweizerbart, 1861)

Prodromus florae hispanicae, seu synopsis methodica omnium plantarum in Hispania - Willkomm, Moritz, 1821 -1895 (E. Schweizerbart, 1861)

Prodromus florae Hispanicae :seu Synopsis methodica omnium plantarum in Hispania, sponte nascentium vel frequentius cultarum quae innotuerunt - Willkomm, Moritz, 1821 -1895 (E. Schweizerbart, 1870)

Prodromus florae hispanicae, seu synopsis methodica omnium plantarum in Hispania - Willkomm, Moritz, 1821 -1895 (E. Schweizerbart, 1870)

Prodromus florae Norfolkicae, sive, Catalogus stirpium quae in Insula Norfolk annis 1804 et 1805 a Ferdinando Bauer collectae et depictae nunc in Museo Caesareo Palatino Rerum Naturalium Vindobonae servantur - Endlicher, Stephan, 1804 -1849 (Apud Fridericum Beck, 1833)

Prodromus florae Suidniciensis - Helmrich, Karl, 1833 - (Gustavus Schade, 1857)

Prodromus systematis naturalis regni vegetabilis, sive, Enumeratio contracta ordinum generum specierumque plantarum huc usque cognitarium, juxta methodi naturalis, normas digesta - Candolle, Augustin Pyramus de, 1778 -1841 (Sumptibus Sociorum Treuttel et Würtz, 1873)

Prodromus systematis naturalis regni vegetabilis, sive, Enumeratio contracta ordinum generum specierumque plantarum huc usque cognitarium, juxta methodi naturalis, normas digesta - Candolle, Augustin Pyramus de, 1778 -1841 (Sumptibus Sociorum Treuttel et Würtz, 1874)

Prodromus systematis naturalis regni vegetabilis, sive, Enumeratio contracta ordinum generum specierumque plantarum huc usque cognitarium, juxta methodi naturalis, normas digesta - Candolle, Augustin Pyramus de, 1778 -1841 (Sumptibus Sociorum Treuttel et Würtz, 1842)

Productivity and herbivory in high and low diversity tropical successional ecosystems in Costa Rica - Brown, Becky Jean, 1948 - (1982)

Prof. dr. Thom©♭'s Flora von Deutschland, ©sterreich und der Schweiz in wort und bild f©ơr schule und haus - Thomé, Otto W. (Otto Wilhelm), 1840 -1925 (F. E. K©œhler, 1886)

Prof. dr. Thomé's Flora von Deutschland, Österreich und der Schweiz, in wort und bild, für schule und haus ... mit ... - Migula, W. (Walter), 1863 -1938 (1903)

Prof. dr. Thomé's Flora von Deutschland, Österreich und der Schweiz, in wort und bild, für schule und haus ... mit ... - Migula, W. (Walter), 1863 -1938 (1889)

Prof. dr. Thomé's Flora von Deutschland, Österreich und der Schweiz, in wort und bild, für schule und haus ... mit ... - Migula, W. (Walter), 1863 -1938 (1905)

Progressus rei botanicae = Fortschritte der Botanik = Progrès de la botanique = Progress of botany - Association internationale des botanistes. (G. Fischer, 1907)

Progressus rei botanicae = Fortschritte der Botanik = Progrès de la botanique = Progress of botany - Association internationale des botanistes. (G. Fischer, 1914)

Proposed estuarine sanctuary grant award to the state of New York for a Hudson River estuarine sanctuary - National Ocean Survey. Office of Coastal Zone Management. (U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, Office of Coastal Zone Management, 1982)

Prospetto della flora trentina - Gelmi, Enrico, 1855 -1901 (T.O. Weigel, 1893)

The protection of cucurbits, 1979-April 1990 : citations from AGRICOLA concerning diseases and other environmental considerations - National Agricultural Library (U.S.) (U.S. Dept. of Agriculture, National Agricultural Library, 1990)

A provisional host-index of the fungi of the United States - Farlow, W. G. (William Gilson), 1844 -1919 (1891)

A provisional host-index of the fungi of the United States - Farlow, W. G. (William Gilson), 1844 -1919 (1888)

Psyche - Cambridge Entomological Club. (Cambridge Entomological Club, 1890)

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

Psyche - Cambridge Entomological Club. (Cambridge Entomological Club, 2013)

Psyche - Cambridge Entomological Club. (Cambridge Entomological Club, 2014)

Psyche - Cambridge Entomological Club. (Cambridge Entomological Club, 2017)

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

pu yang zhi wu zhi - Zhang, Junpu, Wu Hongchen, Zhu Xuewen & Ma Yipin (zhong guo ke xue ji shu chu ban she, 1996)

Publicações Comissão de linhas telegraficas estratégicas de Mato Grosso ao Amazonas (A Comissão, 1954)

Publication. Field Columbian Museum Botanical series - Field Columbian Museum. (Field Columbian Museum, 1895)

Publication. Field Columbian Museum Botanical series - Field Columbian Museum. (Field Columbian Museum, 1896)

Publication. Field Museum of Natural History Botanical series - Field Museum of Natural History. (Field Museum of Natural History, 1930)

Publication. Field Museum of Natural History Botanical series - Field Museum of Natural History. (Field Museum of Natural History, 1929)

Publication. Field Museum of Natural History Botanical series - Field Museum of Natural History. (Field Museum of Natural History, 1923)

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

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

Publication. Field Museum of Natural History Botanical series - Field Museum of Natural History. (Field Museum of Natural History, 1941)

Publication. Field Museum of Natural History Botanical series - Field Museum of Natural History. (Field Museum of Natural History, 1931)

Publication. Field Museum of Natural History Botanical series - Field Museum of Natural History. (Field Museum of Natural History, 1936)

Publication. Field Museum of Natural History Botanical series - Field Museum of Natural History. (Field Museum of Natural History, 1960)

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

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

Publication. Field Museum of Natural History Botanical series - Field Museum of Natural History. (Field Museum of Natural History, 1944)

Publication - Smithsonian Institution. Institute of Social Anthropology (U.S. Govt. Print. Off, 1947)

Publication - Smithsonian Institution. Institute of Social Anthropology (U.S. Govt. Print. Off, 1952)

Publication / the Herbarium, Department of Biological Sciences, University of California, Santa Barbara - University of California, Santa Barbara. (the Herbarium, 1984)

Publication / the Herbarium, Department of Biological Sciences, University of California, Santa Barbara - University of California, Santa Barbara. (the Herbarium, 1986)

Publications of the Bureau of Plant Industry - United States. Bureau of Plant Industry. ([U.S. Dept. of Agriculture, Division of Publications], 1911)

Publications of the Bureau of Plant Industry - United States. Bureau of Plant Industry. ([U.S. Dept. of Agriculture, Division of Publications], 1912)

[Publications on plant pathology from Wisconsin Experiment Station Research bulletins, collected by H.S. Jackson.] - Wisconsin. Agricultural Experiment Station, Madison (1911)

Purification, partial characterization, and serology of the capsid and cylindrical inclusion proteins of four isolates of watermelon mosaic virus - Baum, Robert H., 1942 - (1980)

qing hai jing ji zhi wu zhi 青海经济植物志 - Guo, Benzhao (郭本兆) (qing hai ren min chu ban she青海人民出版社, 1987)

qing zang zi ran di li zi liao - Xu, Jinzhi 徐近之 (ke xue chu ban she)

Quaestiones entomologicae - University of Alberta. Dept. of Entomology. (Dept. of Entomology, University of Alberta, 1971)