APA (7th ed.) Citation

Wilson, S. (1978). Informal groups: An introduction. Prentice-Hall.

Chicago Style (17th ed.) Citation

Wilson, Stephen. Informal Groups: An Introduction. Englewood Cliffs, N.J.: Prentice-Hall, 1978.

MLA (8th ed.) Citation

Wilson, Stephen. Informal Groups: An Introduction. Prentice-Hall, 1978.