Não informado. (1978). National food review. U.S. Department of Agriculture, National Economics Division.
Chicago-viite (17. p.)Não informado. National Food Review. Washington: U.S. Department of Agriculture, National Economics Division, 1978.
MLA-viite (8. p.)Não informado. National Food Review. U.S. Department of Agriculture, National Economics Division, 1978.
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