APA引文

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

Chicago Style (17th ed.) Citation

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

MLA引文

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

警告：這些引文格式不一定是100％准確.