APA (7th ed.) Citation

Hornbein, T. F., Dyhrenfurth, N. G., & Brower, D. (1966). Everest, the west ridge. Sierra Club.

Chicago Style (17th ed.) Citation

Hornbein, Thomas F., Norman G. Dyhrenfurth, and David Brower. Everest, the West Ridge. San Francisco: Sierra Club, 1966.

MLA (9th ed.) Citation

Hornbein, Thomas F., et al. Everest, the West Ridge. Sierra Club, 1966.