APA引文

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

Chicago Style (17th ed.) Citation

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

MLA引文

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