Cita APA (7th ed.)
Johnson, D. W., & Johnson, F. P. (2003). Joining together: Group theory and group skills (8th ed.). Aand B.
Cita Chicago (17th ed.)
Johnson, David W., i Frank P. Johnson. Joining Together: Group Theory and Group Skills. 8th ed. Boston: Aand B, 2003.
Cita MLA (9th ed.)
Johnson, David W., i Frank P. Johnson. Joining Together: Group Theory and Group Skills. 8th ed. Aand B, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.