APA (7th ed.) Citation

Watson, D. L., & Tharp, R. G. (1993). Self-directed behavior: Self-modification for personal adjustment (6th ed.). Brooks/Cole.

Chicago Style (17th ed.) Citation

Watson, David L., and Roland G. Tharp. Self-directed Behavior: Self-modification for Personal Adjustment. 6th ed. Pacific Grove, Calif: Brooks/Cole, 1993.

MLA (9th ed.) Citation

Watson, David L., and Roland G. Tharp. Self-directed Behavior: Self-modification for Personal Adjustment. 6th ed. Brooks/Cole, 1993.