APA (7th ed.) Citation

Knowles, M. S., & Knowles, H. (1972). Introduction to group dynamics (Rev. ed.). Association Press.

Chicago Style (17th ed.) Citation

Knowles, Malcolm Shepherd, and Hulda Knowles. Introduction to Group Dynamics. Rev. ed. New York: Association Press, 1972.

MLA (9th ed.) Citation

Knowles, Malcolm Shepherd, and Hulda Knowles. Introduction to Group Dynamics. Rev. ed. Association Press, 1972.