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Organization and Management of Apiaries Producing Extracted Honey in the White Clover Region

D. L. ParkerGustaf Adolph PearsonHorace Greeley ByersLorraine Joseph MarkwardtRaymond Secord WashburnStephen Harold HastingsWalter Ernest FlemingF. E. ParkerGeorge Eugene MarvinRaymond Eugene MarshRobert Smith HolmesThomas Randall Carson WilsonLyle Thomas Alexander

出版	U.S. Department of Agriculture, 1935
URL	http://books.google.com.hk/books?id=6XukAQAACAAJ&hl=&source=gbs_api