United States. Bureau of Agricultural Economics. (1931). [Regulations of the Department of Agriculture under the United States Cotton standards act. Government Printing Office.
Style de citation Chicago (17e éd.)United States. Bureau of Agricultural Economics. [Regulations of the Department of Agriculture Under the United States Cotton Standards Act. Washington: Government Printing Office, 1931.
Style de citation MLA (8e éd.)United States. Bureau of Agricultural Economics. [Regulations of the Department of Agriculture Under the United States Cotton Standards Act. Government Printing Office, 1931.
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