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Composition and Digestibility of Corn Ensilage, Cowpea Ensilage, Soja Bean Ensilage, and Corn-fodder
Cyril George Hopkins
Eugene Davenport
George Perkins Clinton
Nathan Austin Weston
Perry Greeley Holden
Stephen Alfred Forbes
Thomas Jonathan Burrill
Wilber John Fraser
出版
University of Illinois Agricultural Experiment Station
, 1896
URL
http://books.google.com.hk/books?id=9qFOAQAAMAAJ&hl=&source=gbs_api