Não informado. (1962). Foreign Agricultural Trade of the United States. U.S. Department of Agriculture, Economic Research Service.
Chicago Style (17. basım) AtıfNão informado. Foreign Agricultural Trade of the United States. Washington: U.S. Department of Agriculture, Economic Research Service, 1962.
MLA (8th ed.) AtıfNão informado. Foreign Agricultural Trade of the United States. U.S. Department of Agriculture, Economic Research Service, 1962.
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