Não informado. (2000). Bulletin of the New York State Agricultural Experiment Station, Ithaca. New York State Agricultural Experiment Station.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Bulletin of the New York State Agricultural Experiment Station, Ithaca. Ithaca, NY: New York State Agricultural Experiment Station, 2000.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Bulletin of the New York State Agricultural Experiment Station, Ithaca. New York State Agricultural Experiment Station, 2000.
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