Não informado. (1975). Agricultural Outlook. U.S. Department of Agriculture, Economic Research Service.
Chicagoスタイル(17版)引用形式Não informado. Agricultural Outlook. Washington: U.S. Department of Agriculture, Economic Research Service, 1975.
MLA(8版)引用形式Não informado. Agricultural Outlook. U.S. Department of Agriculture, Economic Research Service, 1975.
警告: この引用は必ずしも正確ではありません.