Cita APA (7a ed.)

Frederick, H. V. (2012). Once upon a toad. Simon & Schuster Books For Young Readers.

Cita Chicago Style (17a ed.)

Frederick, Heather Vogel. Once upon a Toad. New York: Simon & Schuster Books For Young Readers, 2012.

Cita MLA (8a ed.)

Frederick, Heather Vogel. Once upon a Toad. Simon & Schuster Books For Young Readers, 2012.

Precaución: Estas citas no son 100% exactas.