Gulley, H. E. (1966). Discussion, conference, and group process. Holt, Rinehart and Winston.
芝加哥风格引文Gulley, Halbert E. Discussion, Conference, and Group Process. New York: Holt, Rinehart and Winston, 1966.
MLA引文Gulley, Halbert E. Discussion, Conference, and Group Process. Holt, Rinehart and Winston, 1966.
警告：这些引文格式不一定是100％准确.