Não informado. (1980). Bulletin of the Arizona Agricultural Experiment Station. Arizona Agricultural Experiment Station.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Bulletin of the Arizona Agricultural Experiment Station. Tucson, Ariz: Arizona Agricultural Experiment Station, 1980.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Bulletin of the Arizona Agricultural Experiment Station. Arizona Agricultural Experiment Station, 1980.
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