"Costs of producing selected crops in the United States, 1975, 1976, and projections for 1977"@en . "Costs of producing selected crops in the United States, 1975, 1976, and projections for 1977" . . . . . . "Costs of producing selected crops in the United States"@en . "Costs of producing selected crops in the United States" . . "Costs of producing selected crops in the United States, 1975-1976, and projections for 1977" . . . . . . . . . . . . . . "Field crops United States Costs." . . "United States. Congress. Senate. Committee on Agriculture and Forestry." . . "United States. Department of Agriculture. Economic Research Service." . . "United States." . . "Field crops Costs." . .