APA (7th ed.) Citation

Collins, S. L., & VanDeWalle, T. (2011). Frogs and toads in your pocket: A guide to amphibians of the upper Midwest. University of Iowa Press.

Chicago Style (17th ed.) Citation

Collins, Suzanne L., and Terry VanDeWalle. Frogs and Toads in Your Pocket: A Guide to Amphibians of the Upper Midwest. [Iowa City, Iowa]: University of Iowa Press, 2011.

MLA (9th ed.) Citation

Collins, Suzanne L., and Terry VanDeWalle. Frogs and Toads in Your Pocket: A Guide to Amphibians of the Upper Midwest. University of Iowa Press, 2011.