Não informado. (1934). News for farmer cooperatives. Department of Agriculture, Farmers Cooperative Service.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. News for Farmer Cooperatives. Washington: Department of Agriculture, Farmers Cooperative Service, 1934.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. News for Farmer Cooperatives. Department of Agriculture, Farmers Cooperative Service, 1934.
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