APA-Zitierstil (7. Ausg.)

(1990). Frogs, toads, lizards and salamanders (1. ed.). Greenwillow Books.

Chicago-Zitierstil (17. Ausg.)

Frogs, Toads, Lizards and Salamanders. 1. ed. New York: Greenwillow Books, 1990.

MLA-Zitierstil (9. Ausg.)

Frogs, Toads, Lizards and Salamanders. 1. ed. Greenwillow Books, 1990.