Não informado. (2001). Annual report of the United States Department of Agriculture. U.S. Department of Agriculture.
Cita Chicago Style (17a ed.)Não informado. Annual Report of the United States Department of Agriculture. Washington: U.S. Department of Agriculture, 2001.
Cita MLA (8a ed.)Não informado. Annual Report of the United States Department of Agriculture. U.S. Department of Agriculture, 2001.
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