United States. Bureau of Agricultural Economics. (1931). [Regulations of the Department of Agriculture under the United States Cotton standards act. Government Printing Office.
Cita Chicago Style (17a ed.)United States. Bureau of Agricultural Economics. [Regulations of the Department of Agriculture Under the United States Cotton Standards Act. Washington: Government Printing Office, 1931.
Cita MLA (8a ed.)United States. Bureau of Agricultural Economics. [Regulations of the Department of Agriculture Under the United States Cotton Standards Act. Government Printing Office, 1931.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.