Não informado. (1946). Annual cotton quality survey. U.S. Department of Agriculture, Production and Marketing.
Chicago-viite (17. p.)Não informado. Annual Cotton Quality Survey. Washington: U.S. Department of Agriculture, Production and Marketing, 1946.
MLA-viite (8. p.)Não informado. Annual Cotton Quality Survey. U.S. Department of Agriculture, Production and Marketing, 1946.
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