Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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