Não informado. (2002). Journal American Pomological Society. American Pomological Society.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Journal American Pomological Society. University Park, Pa: American Pomological Society, 2002.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Journal American Pomological Society. American Pomological Society, 2002.
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