APA-Zitierstil (7. Ausg.)

Opie, J. (2018). Ogallala: Water for a dry land (Third edition.). University of Nebraska Press.

Chicago-Zitierstil (17. Ausg.)

Opie, John. Ogallala: Water for a Dry Land. Third edition. Lincoln: University of Nebraska Press, 2018.

MLA-Zitierstil (9. Ausg.)

Opie, John. Ogallala: Water for a Dry Land. Third edition. University of Nebraska Press, 2018.