APA (7th ed.) Citation

Emberley, R., Emberley, E., & Emberley, A. (2009). There was an old monster. Orchard Books.

Chicago Style (17th ed.) Citation

Emberley, Rebecca, Ed Emberley, and Adrian Emberley. There Was an Old Monster. New York: Orchard Books, 2009.

MLA (8th ed.) Citation

Emberley, Rebecca, et al. There Was an Old Monster. Orchard Books, 2009.

Warning: These citations may not always be 100% accurate.