Não informado. (2001). Annual report of the United States Department of Agriculture. U.S. Department of Agriculture.
Style de citation Chicago (17e éd.)Não informado. Annual Report of the United States Department of Agriculture. Washington: U.S. Department of Agriculture, 2001.
Style de citation MLA (8e éd.)Não informado. Annual Report of the United States Department of Agriculture. U.S. Department of Agriculture, 2001.
Attention : ces citations peuvent ne pas être correctes à 100%.