Cita APA (7th ed.)
Watson, D. L., & Tharp, R. G. (1989). Self-directed behavior: Self-modification for personal adjustment (5th ed.). Brooks/Cole Pub. Co..
Cita Chicago (17th ed.)
Watson, David L., i Roland G. Tharp. Self-directed Behavior: Self-modification for Personal Adjustment. 5th ed. Pacific Grove, Calif.: Brooks/Cole Pub. Co., 1989.
Cita MLA (9th ed.)
Watson, David L., i Roland G. Tharp. Self-directed Behavior: Self-modification for Personal Adjustment. 5th ed. Brooks/Cole Pub. Co., 1989.
Atenció: Aquestes cites poden no estar 100% correctes.