Não informado. (1946). Annual cotton quality survey. U.S. Department of Agriculture, Production and Marketing.
Citação do estilo Chicago (17ª ed.)Não informado. Annual Cotton Quality Survey. Washington: U.S. Department of Agriculture, Production and Marketing, 1946.
Citação MLA (8ª ed.)Não informado. Annual Cotton Quality Survey. U.S. Department of Agriculture, Production and Marketing, 1946.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.