APA (7 वां संस्करण) प्रशस्ति पत्र
Green, J. C., & Janssen, R. B. (1975). Minnesota birds: Where, when, and how many. Published by the University of Minnesota Press, for the James Ford Bell Museum of Natural History.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Green, Janet C., और Robert B. Janssen. Minnesota Birds: Where, When, and How Many. Minneapolis: Published by the University of Minnesota Press, for the James Ford Bell Museum of Natural History, 1975.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Green, Janet C., और Robert B. Janssen. Minnesota Birds: Where, When, and How Many. Published by the University of Minnesota Press, for the James Ford Bell Museum of Natural History, 1975.
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