APA (7th ed.) Citation

British Geomorphological Research Group, Symposium on Polar Geomorphology, Price, R. J., & Sugden, D. E. (1972). Polar geomorphology. Institute of British Geographers.

Chicago Style (17th ed.) Citation

British Geomorphological Research Group, Symposium on Polar Geomorphology, Robert J. Price, and David E. Sugden. Polar Geomorphology. London: Institute of British Geographers, 1972.

MLA (9th ed.) Citation

British Geomorphological Research Group, et al. Polar Geomorphology. Institute of British Geographers, 1972.