Cita APA (7a ed.)

Gutman, D., & Paillot, J. (2007). Mr. Louie is screwy! (1st Harper trophy ed.). HarperCollins.

Cita Chicago Style (17a ed.)

Gutman, Dan, y Jim Paillot. Mr. Louie Is Screwy! 1st Harper trophy ed. New York: HarperCollins, 2007.

Cita MLA (8a ed.)

Gutman, Dan, y Jim Paillot. Mr. Louie Is Screwy! 1st Harper trophy ed. HarperCollins, 2007.