APA (7th ed.) Citation

Widule, W., Swartling, S. O., & Chicago Mountaineering Club. (1979). Climber's guide to Devil's Lake. University of Wisconsin Press.

Chicago Style (17th ed.) Citation

Widule, William, Sven Olof Swartling, and Chicago Mountaineering Club. Climber's Guide to Devil's Lake. Madison: University of Wisconsin Press, 1979.

MLA (8th ed.) Citation

Widule, William, et al. Climber's Guide to Devil's Lake. University of Wisconsin Press, 1979.