Cita APA (7a ed.)

Sperry, A., & Guidall, G. (2013). Call it courage (Unabridged.). Recorded Books Inc..

Cita Chicago Style (17a ed.)

Sperry, Armstrong, y George Guidall. Call It Courage. Unabridged. Prince Frederick: Recorded Books Inc., 2013.

Cita MLA (8a ed.)

Sperry, Armstrong, y George Guidall. Call It Courage. Unabridged. Recorded Books Inc., 2013.

Precaución: Estas citas no son 100% exactas.