Cita APA (7a ed.)

Madison, A., & Hawkes, K. (2007). Velma Gratch and the way cool butterfly. Schwartz & Wade Books.

Cita Chicago Style (17a ed.)

Madison, Alan, y Kevin Hawkes. Velma Gratch and the Way Cool Butterfly. New York: Schwartz & Wade Books, 2007.

Cita MLA (8a ed.)

Madison, Alan, y Kevin Hawkes. Velma Gratch and the Way Cool Butterfly. Schwartz & Wade Books, 2007.

Precaución: Estas citas no son 100% exactas.