APA (7th ed.) Citation

Porter, E., & Brower, D. (1968). The place no one knew: Glen Canyon on the Colorado ([Abridged].). Sierra Club.

Chicago Style (17th ed.) Citation

Porter, Eliot, and David Brower. The Place No One Knew: Glen Canyon on the Colorado. [Abridged]. San Francisco: Sierra Club, 1968.

MLA (9th ed.) Citation

Porter, Eliot, and David Brower. The Place No One Knew: Glen Canyon on the Colorado. [Abridged]. Sierra Club, 1968.