APA aipamena

Johnson, D. W., & Johnson, F. P. (1997). Joining together: Group theory and group skills (6th ed.). Allyn and Bacon.

Chicago Style aipamena

Johnson, David W., and Frank P. Johnson. Joining Together: Group Theory and Group Skills. 6th ed. Boston, Mass.: Allyn and Bacon, 1997.

MLA aipamena

Johnson, David W., and Frank P. Johnson. Joining Together: Group Theory and Group Skills. 6th ed. Allyn and Bacon, 1997.