Watson, D. L., & Tharp, R. G. (1985). Self-directed behavior: Self-modification for personal adjustment. Brooks/Cole.
Lua i Stíl Chicago (17ú heag.)Watson, David L., agus Roland G. Tharp. Self-directed Behavior: Self-modification for Personal Adjustment. Monterey, Calif: Brooks/Cole, 1985.
Lua MLA (9ú heag.)Watson, David L., agus Roland G. Tharp. Self-directed Behavior: Self-modification for Personal Adjustment. Brooks/Cole, 1985.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.