Não informado. (1945). Agriculture abroad. Department of Agriculture, Economics Division of the Marketing Service.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Agriculture Abroad. Ottawa: Department of Agriculture, Economics Division of the Marketing Service, 1945.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Agriculture Abroad. Department of Agriculture, Economics Division of the Marketing Service, 1945.
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