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Motor-driven Green Feed, Root, and Straw Choppers
Brittain Bragunier Robinson
Carl Ephraim Schuster
Edward Fritchoff Torgerson
Frederic Earl Price
Harry August Schoth
Henry Hartman
James Niven Shaw
Oran Milton Nelson
Oregon State College. Agricultural Experiment Station
T. R. Chamberlin
出版
Agricultural Experiment Station, Oregon State Agricultural College
, 1928
URL
http://books.google.com.hk/books?id=h8pPAQAAMAAJ&hl=&source=gbs_api