Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

Ritter, Dale F., Kochel,. R. Craig, y Jerry R. Miller. Process Geomorphology. 4th ed.

Cita MLA (8a ed.)

Ritter, Dale F., et al. Process Geomorphology. 4th ed.