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Google圖書搜尋
Spraying Versus Dusting to Control the Potato Leafhopper in Commercial Potato Fields of Wisconsin
J. E. Dudley
Charles Lewis Fluke
出版
Agricultural Experiment Station of the University of Wisconsin
, 1928
URL
http://books.google.com.hk/books?id=HUAzAAAAMAAJ&hl=&source=gbs_api