Style de citation APA (7e éd.)

Dorcas, M. E., & Gibbons, J. W. (2011). Frogs: The Animal Answer Guide. Johns Hopkins University Press.

Style de citation Chicago (17e éd.)

Dorcas, Michael E., et J. Whitfield Gibbons. Frogs: The Animal Answer Guide. Baltimore: Johns Hopkins University Press, 2011.

Style de citation MLA (8e éd.)

Dorcas, Michael E., et J. Whitfield Gibbons. Frogs: The Animal Answer Guide. Johns Hopkins University Press, 2011.