USDA, 2010. USDA, Economic Research Service, Briefing Rooms Document reference USDA, 2010. Soybeans and Oil Crops: Sunflowerseed. USDA, Economic Research Service, Briefing RoomsWeb http://www.ers.usda.gov/Briefing/SoybeansOilcrops/sunflower.htmCitation key USDA, 2010Datasheets Sunflower seeds
