Cita APA (7th ed.)

Edwards, P. D., & Kirk, D. (2010). While the world is sleeping. Orchard Books.

Cita Chicago (17th ed.)

Edwards, Pamela Duncan, i Daniel Kirk. While the World Is Sleeping. New York: Orchard Books, 2010.

Cita MLA (8th ed.)

Edwards, Pamela Duncan, i Daniel Kirk. While the World Is Sleeping. Orchard Books, 2010.