Egan, T. (2006). The worst hard time: The untold story of those who survived the great American dust bowl. Houghton Mifflin Co..
Style de citation Chicago (17e éd.)Egan, Timothy. The Worst Hard Time: The Untold Story of Those Who Survived the Great American Dust Bowl. Boston: Houghton Mifflin Co., 2006.
Style de citation MLA (8e éd.)Egan, Timothy. The Worst Hard Time: The Untold Story of Those Who Survived the Great American Dust Bowl. Houghton Mifflin Co., 2006.
Attention : ces citations peuvent ne pas être correctes à 100%.