APA (7th ed.) Citation

Levinthal, D., & Nickle, J. (2012). Who pushed Humpty Dumpty?: And other notorious nursery tale mysteries. Schwartz & Wade Books.

Chicago Style (17th ed.) Citation

Levinthal, David, and John Nickle. Who Pushed Humpty Dumpty?: And Other Notorious Nursery Tale Mysteries. New York: Schwartz & Wade Books, 2012.

MLA (9th ed.) Citation

Levinthal, David, and John Nickle. Who Pushed Humpty Dumpty?: And Other Notorious Nursery Tale Mysteries. Schwartz & Wade Books, 2012.