Παραπομπή σε μορφή APA (7η εκδ.)

Johnson, D. W., & Johnson, F. P. (1994). Joining together: Group theory and group skills (5th ed.). Allyn and Bacon.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Johnson, David W., και Frank Pierce Johnson. Joining Together: Group Theory and Group Skills. 5th ed. Boston: Allyn and Bacon, 1994.

Παραπομπή σε μορφή MLA (9th εκδ.)

Johnson, David W., και Frank Pierce Johnson. Joining Together: Group Theory and Group Skills. 5th ed. Allyn and Bacon, 1994.