Schroeder, D. A., & Penner, L. A. (1995). The psychology of helping and altruism: Problems and puzzles. McGraw-Hill.
芝加哥风格引文Schroeder, David A., 与 Louis A. Penner. The Psychology of Helping and Altruism: Problems and Puzzles. New York: McGraw-Hill, 1995.
MLA引文Schroeder, David A., 与 Louis A. Penner. The Psychology of Helping and Altruism: Problems and Puzzles. McGraw-Hill, 1995.
警告：这些引文格式不一定是100％准确.