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Comparative Values of Crops for Different Sections of Minnesota
Austin Allyn Dowell
Herbert Kendall Hayes
James Douglass Winter
Knute Bjorka
Lowry Nelson
Nathaniel Newton Allen
Rex W. Cox
William Earl Petersen
Ernst Jacobson
Donald Mitchell
其他書名
Data from Experiment Station Trials, 1921-1941
出版
Agricultural Experiment Station, University of Minnesota
, 1942
URL
http://books.google.com.hk/books?id=OMZQAQAAMAAJ&hl=&source=gbs_api
