APA-referens (7:e uppl.)

Tubbs, S. L. (1998). A system approach to small group interaction (6th ed.). McGraw Hill.

Chicago-referens (17:e uppl.)

Tubbs, Stewart L. A System Approach to Small Group Interaction. 6th ed. Boston: McGraw Hill, 1998.

MLA-referens (9:e uppl.)

Tubbs, Stewart L. A System Approach to Small Group Interaction. 6th ed. McGraw Hill, 1998.