APA استشهاد

Kochel, R. C. A., Miller, J. R. A., & Ritter, D. F. A. (2006). Process geomorphology (4th ed.).

استشهاد بنمط شيكاغو

Kochel, R Craig; Author, Jerry R; Author Miller, و Dale F; Author Ritter. Process Geomorphology. 4th ed. Illinois, Waveland Press, Inc, 2006.

MLA استشهاد

Kochel, R Craig; Author, et al. Process Geomorphology. 4th ed. 2006.