Cita APA (7th ed.)
Gulley, H. E. (1966). Discussion, conference, and group process. Holt, Rinehart and Winston.
Cita Chicago (17th ed.)
Gulley, Halbert E. Discussion, Conference, and Group Process. New York: Holt, Rinehart and Winston, 1966.
Cita MLA (9th ed.)
Gulley, Halbert E. Discussion, Conference, and Group Process. Holt, Rinehart and Winston, 1966.
Atenció: Aquestes cites poden no estar 100% correctes.