APA (7th ed.) Citation

Chorley, R. J., Schumm, S. A., & Sugden, D. E. (1984). Geomorphology. Methuen.

Chicago Style (17th ed.) Citation

Chorley, Richard J., Stanley Alfred Schumm, and David E. Sugden. Geomorphology. London u.a: Methuen, 1984.

MLA (9th ed.) Citation

Chorley, Richard J., et al. Geomorphology. Methuen, 1984.