Não informado. (2001). Annual Report of the Secretary of the State Pomological Society of Michigan. State Pomological Society of Michigan.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Annual Report of the Secretary of the State Pomological Society of Michigan. Lansing, Mich: State Pomological Society of Michigan, 2001.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Annual Report of the Secretary of the State Pomological Society of Michigan. State Pomological Society of Michigan, 2001.
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