APA (7th ed.) Zitazioa
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.
Chicago Style (17th ed.) Zitazioa
Van de Walle, Terry, eta 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.
MLA (9th ed.) Zitazioa
Van de Walle, Terry, eta 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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