Não informado. Outlook for U.S. Agricultural Exports. U.S. Department of Agriculture, Economic Research Service.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Outlook for U.S. Agricultural Exports. Washington: U.S. Department of Agriculture, Economic Research Service.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Outlook for U.S. Agricultural Exports. U.S. Department of Agriculture, Economic Research Service.
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