Watson, D. L., & Tharp, R. G. (1985). Self-directed behavior: Self-modification for personal adjustment. Brooks/Cole.
Chicago-viite (17. p.)Watson, David L., ja Roland G. Tharp. Self-directed Behavior: Self-modification for Personal Adjustment. Monterey, Calif: Brooks/Cole, 1985.
MLA-viite (9. p.)Watson, David L., ja Roland G. Tharp. Self-directed Behavior: Self-modification for Personal Adjustment. Brooks/Cole, 1985.
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