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Research Bulletin

Arthur Armington LewisBrown R. RawlingsCharles Elson LivelyClarence Floyd WinchesterGuy Weston BohnHerman M. HaagPeter Herman HeinzeRaymond Alfred SchroederThomas Jesse Talbert

出版	University of Missouri, College of Agriculture, Agricultural Experiment Station, 1939
URL	http://books.google.com.hk/books?id=DYdRAQAAMAAJ&hl=&source=gbs_api