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Productive farm crops - Montgomery, E. G. (Edward Gerrard), 1878 - (J. B. Lippincott, 1922)

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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)

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 (1934)

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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)

The protection of tropical and subtropical fruits, 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)

The protection of wheat, January 1980 - December 1984 : citations from Agricola concerning diseases and other environmental considerations - National Agricultural Library (U.S.) (U.S. Dept. of Agriculture, National Agricultural Library, 1985)

Proteus; or Unity in nature - Radcliffe, Charles Bland, 1822 -1889 (Macmillan and co, 1877)

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Publication - Smithsonian Institution. Institute of Social Anthropology (U.S. Govt. Print. Off, 1950)

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[Publications on plant pathology from Cornell Agricultural Experiment Station Memoirs, collected by H.S. Jackson.] - Jackson, H. S. (Herbert Spencer), 1883 -1951 (Cornell University], 1915)

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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)

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Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1898)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1913)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1920)

Quarterly summary of re-identifications, April, May, June 1962 : Summary No. 9 - United States. Bureau of Plant Industry, (New Crops Research Branch, Plant Industry Station, 1960)

Quarterly summary of re-identifications, July, August, September 1961 : Change No. 6 - United States. Bureau of Plant Industry, (New Crops Research Branch, Plant Industry Station, 1960)

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The races of man and their geographical distribution - Pickering, Charles, 1805 -1878 (Printed by C. Sherman, 1848)

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Range plant handbook - Dayton, William A. (William Adams), 1885 - (U. S. Govt. print. off, 1937)

Range plant handbook - Dayton, William A. (William Adams), 1885 - (U.S. Govt. print. off, 1937)

Répertoire des plantes utiles et des plantes vénéneuses du globe contenant la synonymie latine et française des plantes, leurs noms vulgaires français et l'indication de leurs usages ... précédé d'un traité indispensable aux personnes qui veulent herboriser, et composer des herbiers - Duchesne, E. A. (Edouard Adolphe), 1804 -1869 (J. Renouard, 1836)

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

Recent advances in entomology - Imms, A. D. (Augustus Daniel), 1880 -1949 (P. Blakiston's son & co., inc, 1937)

Recent advances in microscopy; biological applications - MacBride, E. W. (Ernest William), 1866 -1940 (P. Blakiston's son & co., inc, 1931)