APA (7th ed.) Citation

Ernst, C. H. (2009). Turtles of the United States and Canada (2nd ed.). Johns Hopkins University Press.

Chicago Style (17th ed.) Citation

Ernst, Carl H. Turtles of the United States and Canada. 2nd ed. Baltimore: Johns Hopkins University Press, 2009.

MLA (9th ed.) Citation

Ernst, Carl H. Turtles of the United States and Canada. 2nd ed. Johns Hopkins University Press, 2009.