APA-viite (7. p.)

Carkhuff, R. R. (1983). The art of helping (5th ed.). Human Resource Development Press.

Chicago-viite (17. p.)

Carkhuff, Robert R. The Art of Helping. 5th ed. Amherst, Massachuttes: Human Resource Development Press, 1983.

MLA-viite (9. p.)

Carkhuff, Robert R. The Art of Helping. 5th ed. Human Resource Development Press, 1983.