APA (7th ed.) Citation

Bridge, R. (1981). America's backpacking book (Rev. ed.). Scribner.

Chicago Style (17th ed.) Citation

Bridge, Raymond. America's Backpacking Book. Rev. ed. New York: Scribner, 1981.

MLA (9th ed.) Citation

Bridge, Raymond. America's Backpacking Book. Rev. ed. Scribner, 1981.