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Google圖書搜尋
Progress Report of the Irrigated Eighty-acre Demonstration Farm Unit of the Harney Branch Experiment Station, 1927-1930
Alfred Weaver Oliver
DeLoss Everett Bullis
Ernest Herman Wiegand
George Leslie Sulerud
Idwal Ralph Jones
Obil Shattuck
Robert Withycombe
Walter Theodore Johnson
Ermine Lawrence Potter
出版
Agricultural Experiment Station, Oregon State Agricultural College
, 1930
URL
http://books.google.com.hk/books?id=ndRPAQAAMAAJ&hl=&source=gbs_api