APA (7th ed.) Citation

Norton, B. (1994). Toward unity among environmentalists (New ed.). Oxford University Press.

Chicago Style (17th ed.) Citation

Norton, Bryan. Toward Unity Among Environmentalists. New ed. New York: Oxford University Press, 1994.

MLA (9th ed.) Citation

Norton, Bryan. Toward Unity Among Environmentalists. New ed. Oxford University Press, 1994.