Cita APA (7a ed.)

Gratz, A., & Helquist, B. (2014). The League of Seven (First edition.). Starscape.

Cita Chicago Style (17a ed.)

Gratz, Alan, y Brett Helquist. The League of Seven. First edition. New York: Starscape, 2014.

Cita MLA (8a ed.)

Gratz, Alan, y Brett Helquist. The League of Seven. First edition. Starscape, 2014.

Precaución: Estas citas no son 100% exactas.