Knowles, M. S., & Knowles, H. (1972). Introduction to group dynamics (Rev. ed.). Association Press.
Cita Chicago (17th ed.)Knowles, Malcolm Shepherd, i Hulda Knowles. Introduction to Group Dynamics. Rev. ed. New York: Association Press, 1972.
Cita MLA (9th ed.)Knowles, Malcolm Shepherd, i Hulda Knowles. Introduction to Group Dynamics. Rev. ed. Association Press, 1972.
Atenció: Aquestes cites poden no estar 100% correctes.