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