Library, U. S. D. o. A. (1947). Bibliography of agriculture. Director of the Bureau of the Budget.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLibrary, United States. Department of Agriculture. Bibliography of Agriculture. Director of the Bureau of the Budget, 1947.
एमएलए (9वां संस्करण) प्रशस्ति पत्रLibrary, United States. Department of Agriculture. Bibliography of Agriculture. Director of the Bureau of the Budget, 1947.
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