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Agricultural Economic Report

Charles B. GarrisonDavid Earl CumminsHelen Therese BlakePaul Edwin NelsonRobert Edward FreemanRoy Arthur BallingerWylie Daniel GoodsellYvonne DaviesUnited States. Department of Agriculture. Economic Research Service

出版	U.S. Department of Agriculture, Economic Research Service, 1970
URL	http://books.google.com.hk/books?id=Qrs3AQAAMAAJ&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN