APA (7th ed.) Citation

Barker, L. L. (1979). Groups in process: An introduction to small group communication. Prentice-Hall.

Chicago Style (17th ed.) Citation

Barker, Larry L. Groups in Process: An Introduction to Small Group Communication. Englewood Cliffs, New Jersey: Prentice-Hall, 1979.

MLA (9th ed.) Citation

Barker, Larry L. Groups in Process: An Introduction to Small Group Communication. Prentice-Hall, 1979.