APA aipamena

CHORLEY, R. J., SCHUMM, S. A., & SUGDEN, D. E. (1984). Geomorphology. Methuen.

Chicago Style aipamena

CHORLEY, Richard J., Stanley A. SCHUMM, and David E. SUGDEN. Geomorphology. London: Methuen, 1984.

MLA aipamena

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