APA (7th ed.) Citation

Douglass, R. W. (1982). Forest recreation (3rd ed.). Pergamon Press.

Chicago Style (17th ed.) Citation

Douglass, Robert W. Forest Recreation. 3rd ed. New York: Pergamon Press, 1982.

MLA (9th ed.) Citation

Douglass, Robert W. Forest Recreation. 3rd ed. Pergamon Press, 1982.