Discussion, conference, and group process [by] Halbert E. Gulley. Gulley, Halbert E. Interpersonal communication. Small groups. LC6519 .G84 1968 808.53 GUD Third ed. (c1977) published under title: Communication and group process. Includes bibliographies. New York, Holt, Rinehart and Winston [1968] [1968] 1968 Text x, 374 p. eng