Johnson, D. W., & Johnson, F. P. (1991). Joining together: Group theory and group skills (4th ed.). Prentice Hall.
芝加哥风格引文Johnson, David W., 与 Frank P. Johnson. Joining Together: Group Theory and Group Skills. 4th ed. Englewood Cliffs, N.J.: Prentice Hall, 1991.
MLA引文Johnson, David W., 与 Frank P. Johnson. Joining Together: Group Theory and Group Skills. 4th ed. Prentice Hall, 1991.
警告：这些引文格式不一定是100％准确.