APA (7th ed.) Citation

Phelps, H. A. (1947). Contemporary social problems (3d ed.). Prentice-Hall.

Chicago Style (17th ed.) Citation

Phelps, Harold Augustus. Contemporary Social Problems. 3d ed. New York: Prentice-Hall, 1947.

MLA (9th ed.) Citation

Phelps, Harold Augustus. Contemporary Social Problems. 3d ed. Prentice-Hall, 1947.