APA (7th ed.) Citation

Gregory, K. J., & Walling, D. E. (1973). Drainage basin form and process: A geomorphological approach. Wiley.

Chicago Style (17th ed.) Citation

Gregory, K. J., and D. E. Walling. Drainage Basin Form and Process: A Geomorphological Approach. New York: Wiley, 1973.

MLA (9th ed.) Citation

Gregory, K. J., and D. E. Walling. Drainage Basin Form and Process: A Geomorphological Approach. Wiley, 1973.