Carkhuff, R. R. (1983). The art of helping (5th ed.). Human Resource Development Press.
芝加哥风格引文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.
警告：这些引文格式不一定是100％准确.