APA引文

Egan, T. (2006). The worst hard time: The untold story of those who survived the great american dust bowl.

Chicago Style (17th ed.) Citation

Egan, Timothy. The Worst Hard Time: The Untold Story of Those Who Survived the Great American Dust Bowl. 2006.

MLA引文

Egan, Timothy. The Worst Hard Time: The Untold Story of Those Who Survived the Great American Dust Bowl. 2006.

警告：這些引文格式不一定是100％准確.