APA (7th ed.) Citation

Porter, E., & Abbey, E. (1970). Appalachian wilderness: The great Smoky Mountains. Dutton.

Chicago Style (17th ed.) Citation

Porter, Eliot, and Edward Abbey. Appalachian Wilderness: The Great Smoky Mountains. New York: Dutton, 1970.

MLA (9th ed.) Citation

Porter, Eliot, and Edward Abbey. Appalachian Wilderness: The Great Smoky Mountains. Dutton, 1970.