APA (7e ed.) Bronvermelding
Watson, D. L., & Tharp, R. G. (1989). Self-directed behavior: Self-modification for personal adjustment (5th ed.). Brooks/Cole Pub. Co..
Chicago (17e ed.) Bronvermelding
Watson, David L., en Roland G. Tharp. Self-directed Behavior: Self-modification for Personal Adjustment. 5th ed. Pacific Grove, Calif.: Brooks/Cole Pub. Co., 1989.
MLA (9e ed.) Bronvermelding
Watson, David L., en Roland G. Tharp. Self-directed Behavior: Self-modification for Personal Adjustment. 5th ed. Brooks/Cole Pub. Co., 1989.
Let op: Deze citaties zijn niet altijd 100% accuraat.