APA aipamena

York, M. J., & Idle, M. S. (2013). The three billy goats gruff. Child's World.

Chicago Style aipamena

York, M. J., and Molly Schaar Idle. The Three Billy Goats Gruff. Mankato, MN: Child's World, 2013.

MLA aipamena

York, M. J., and Molly Schaar Idle. The Three Billy Goats Gruff. Child's World, 2013.