APA引文

Kaplan, R. D., & Dufris, W. (2017). Earning the Rockies: How geography shapes America's role in the world (Unabridged.). HighBridge Audio.

Chicago Style (17th ed.) Citation

Kaplan, Robert D., and William Dufris. Earning the Rockies: How Geography Shapes America's Role in the World. Unabridged. Minneapolis, MN: HighBridge Audio, 2017.

MLA引文

Kaplan, Robert D., and William Dufris. Earning the Rockies: How Geography Shapes America's Role in the World. Unabridged. HighBridge Audio, 2017.

警告：這些引文格式不一定是100％准確.