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Soil Conservation and Farm Income in the Palouse Wheat-pea Area
Bedford W. Bird
Everett James Warwick
John Birge Dobie
Leo Campbell
Leslie John Smith
Maurice Clayton Taylor
Neil Allan MacLean
Tony Joseph Cunha
Warren A. Starr
Washington Agricultural Experiment Station
Wilbur Doane Courtney
Paul H. Landis
出版
State College of Washington, Institute of Agricultural Sciences, Agricultural Experiment Stations
, 1945
URL
http://books.google.com.hk/books?id=6uh3AQAACAAJ&hl=&source=gbs_api