APA (7th ed.) Citation

Thoreau, H. D., & Porter, E. (1962). In wildness is the preservation of the world, from Henry David Thoreau. Sierra Club.

Chicago Style (17th ed.) Citation

Thoreau, Henry David, and Eliot Porter. In Wildness Is the Preservation of the World, from Henry David Thoreau. San Francisco: Sierra Club, 1962.

MLA (9th ed.) Citation

Thoreau, Henry David, and Eliot Porter. In Wildness Is the Preservation of the World, from Henry David Thoreau. Sierra Club, 1962.