Citazione Stile APA (7a Edizione)

Gulley, H. E. (1966). Discussion, conference, and group process. Holt, Rinehart and Winston.

Citazione stile Chigago Style (17a edizione)

Gulley, Halbert E. Discussion, Conference, and Group Process. New York: Holt, Rinehart and Winston, 1966.

Citatione MLA (9a ed.)

Gulley, Halbert E. Discussion, Conference, and Group Process. Holt, Rinehart and Winston, 1966.