Não informado. (1946). Annual cotton quality survey. U.S. Department of Agriculture, Production and Marketing.
Chicago-Zitierstil (17. Ausg.)Não informado. Annual Cotton Quality Survey. Washington: U.S. Department of Agriculture, Production and Marketing, 1946.
MLA-Zitierstil (8. Ausg.)Não informado. Annual Cotton Quality Survey. U.S. Department of Agriculture, Production and Marketing, 1946.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.