Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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