APA (7th ed.) Citation

Porter, E., & Brower, D. (1966). The place no one knew: Glen Canyon on the Colorado ([Revised edition].). Sierra Club.

Chicago Style (17th ed.) Citation

Porter, Eliot, and David Brower. The Place No One Knew: Glen Canyon on the Colorado. [Revised edition]. San Francisco: Sierra Club, 1966.

MLA (9th ed.) Citation

Porter, Eliot, and David Brower. The Place No One Knew: Glen Canyon on the Colorado. [Revised edition]. Sierra Club, 1966.