Não informado. (1973). Cornell International agriculture bulletin. New York State College of Agriculture and Life Sciences.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Cornell International Agriculture Bulletin. Ithaca, NY: New York State College of Agriculture and Life Sciences, 1973.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Cornell International Agriculture Bulletin. New York State College of Agriculture and Life Sciences, 1973.
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