APA (7th ed.) Citation

Johnson, D. W., & Johnson, F. P. (2006). Joining together: Group theory and group skills (9th ed.). Pearson Education.

Chicago Style (17th ed.) Citation

Johnson, David W., and Frank P. Johnson. Joining Together: Group Theory and Group Skills. 9th ed. Upper Saddle River, N.J: Pearson Education, 2006.

MLA (9th ed.) Citation

Johnson, David W., and Frank P. Johnson. Joining Together: Group Theory and Group Skills. 9th ed. Pearson Education, 2006.