Citazione Stile APA (7a Edizione)

Mattison, C. (1987). Frogs and Toads of the World. Princeton University.

Citazione stile Chigago Style (17a edizione)

Mattison, Chris. Frogs and Toads of the World. New Jersey: Princeton University, 1987.

Citatione MLA (9a ed.)

Mattison, Chris. Frogs and Toads of the World. Princeton University, 1987.