APA (7th ed.) Citation

Wilson, K., & Mendez, S. (2011). Mama, why? Margaret K. McElderry Books.

Chicago Style (17th ed.) Citation

Wilson, Karma, and Simon Mendez. Mama, Why? New York: Margaret K. McElderry Books, 2011.

MLA (8th ed.) Citation

Wilson, Karma, and Simon Mendez. Mama, Why? Margaret K. McElderry Books, 2011.