Nations, F. a. A. O. o. t. U. (1970). World agriculture: The last quarter century. The author.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNations, Food and Agriculture Organization of the United. World Agriculture: The Last Quarter Century. The author, 1970.
एमएलए (9वां संस्करण) प्रशस्ति पत्रNations, Food and Agriculture Organization of the United. World Agriculture: The Last Quarter Century. The author, 1970.
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