Ritter, D. F., & Kochel, R. C. M. (2002). Process geomorphology (4th ed.). Mc Graw hill.
Chicago Edition CitationRitter, Dale F., i R. Craig Miller Kochel. Process Geomorphology. 4th ed. Boston: Mc Graw hill, 2002.
Cita MLARitter, Dale F., i R. Craig Miller Kochel. Process Geomorphology. 4th ed. Mc Graw hill, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.