Não informado. (1946). Annual cotton quality survey. U.S. Department of Agriculture, Production and Marketing.
Chicagoスタイル(17版)引用形式Não informado. Annual Cotton Quality Survey. Washington: U.S. Department of Agriculture, Production and Marketing, 1946.
MLA(8版)引用形式Não informado. Annual Cotton Quality Survey. U.S. Department of Agriculture, Production and Marketing, 1946.
警告: この引用は必ずしも正確ではありません.