APA (7th ed.) Citation

Watson, D. L., & Tharp, R. G. (2007). Self-directed behavior: Self-modification for personal adjustment (9th ed.). Thomson Learning.

Chicago Style (17th ed.) Citation

Watson, David L., and Roland G. Tharp. Self-directed Behavior: Self-modification for Personal Adjustment. 9th ed. Belmont, CA: Thomson Learning, 2007.

MLA (8th ed.) Citation

Watson, David L., and Roland G. Tharp. Self-directed Behavior: Self-modification for Personal Adjustment. 9th ed. Thomson Learning, 2007.