Liebert, R. M., & Spiegler, M. D. (1990). Personality: Strategies and issues (6th ed.). Brooks/Cole.
芝加哥风格引文Liebert, Robert M., 与 Michael D. Spiegler. Personality: Strategies and Issues. 6th ed. Pacific Grove, Calif: Brooks/Cole, 1990.
MLA引文Liebert, Robert M., 与 Michael D. Spiegler. Personality: Strategies and Issues. 6th ed. Brooks/Cole, 1990.
警告：这些引文格式不一定是100％准确.