APA引文

Egan, T., & Lawlor, P. G. (2006). The worst hard time: The untold story of those who survived the great American dust bowl. Tantor Media.

Chicago Style (17th ed.) Citation

Egan, Timothy, and Patrick G. Lawlor. The Worst Hard Time: The Untold Story of Those Who Survived the Great American Dust Bowl. [Old Saybrook, CT]: Tantor Media, 2006.

MLA引文

Egan, Timothy, and Patrick G. Lawlor. The Worst Hard Time: The Untold Story of Those Who Survived the Great American Dust Bowl. Tantor Media, 2006.

警告：這些引文格式不一定是100％准確.