APA-viite (7. p.)
Johnson, D. W., & Johnson, F. P. (1994). Joining together: Group theory and group skills (5th ed.). Prentice-Hall.
Chicago-viite (17. p.)
Johnson, David W., ja Frank P. Johnson. Joining Together: Group Theory and Group Skills. 5th ed. Englewood Cliffs, N.J.: Prentice-Hall, 1994.
MLA-viite (9. p.)
Johnson, David W., ja Frank P. Johnson. Joining Together: Group Theory and Group Skills. 5th ed. Prentice-Hall, 1994.
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