APA način citiranja (7. izdanje)

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

Čikaški stil citiranja (17. izdanje)

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

MLA način citiranja (8. izdanje)

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