Cita APA (7th ed.)

Watson, D. L., & Tharp, R. G. (2002). Self-directed behavior: Self-modification for personal adjustment (8th ed.). Wadsworth/Thomson Learning.

Cita Chicago (17th ed.)

Watson, David L., i Roland G. Tharp. Self-directed Behavior: Self-modification for Personal Adjustment. 8th ed. Belmont, Calif: Wadsworth/Thomson Learning, 2002.

Cita MLA (9th ed.)

Watson, David L., i Roland G. Tharp. Self-directed Behavior: Self-modification for Personal Adjustment. 8th ed. Wadsworth/Thomson Learning, 2002.