Não informado. (2001). Annual report of the United States Department of Agriculture. U.S. Department of Agriculture.
Čikaški stil citiranja (17. izdanje)Não informado. Annual Report of the United States Department of Agriculture. Washington: U.S. Department of Agriculture, 2001.
MLA način citiranja (8. izdanje)Não informado. Annual Report of the United States Department of Agriculture. U.S. Department of Agriculture, 2001.
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