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The Control of Tobacco Wilt in the Flue-cured District

Wightman Wells GarnerFrederick Adolph WolfEugene Grissom Moss

出版	U.S. Department of Agriculture, 1917
URL	http://books.google.com.hk/books?id=MNfrAQAACAAJ&hl=&source=gbs_api

註釋

Pp. 18.