APA (7 वां संस्करण) प्रशस्ति पत्र
Van de Walle, T., & Collins, S. L. (2010). Snakes and lizards in your pocket: A guide to reptiles of the upper Midwest. University of Iowa Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Van de Walle, Terry, और Suzanne L. Collins. Snakes and Lizards in Your Pocket: A Guide to Reptiles of the Upper Midwest. [Iowa City, Iowa]: University of Iowa Press, 2010.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Van de Walle, Terry, और Suzanne L. Collins. Snakes and Lizards in Your Pocket: A Guide to Reptiles of the Upper Midwest. University of Iowa Press, 2010.
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