Παραπομπή APA
Powell, A. B., & Fritzsche, B. A. (1996). The self-directed search (SDS): Technical Manual (1994 edition.). Odessa, Fla.: Psychological Assessment Resources.
Παραπομπή Chicago StylePowell, Amy Beth., and Barbara A. Fritzsche. The Self-directed Search (SDS): Technical Manual. 1994 edition. Odessa, Fla.: Psychological Assessment Resources, 1996.
Παραπομπή MLAPowell, Amy Beth., and Barbara A. Fritzsche. The Self-directed Search (SDS): Technical Manual. 1994 edition. Odessa, Fla.: Psychological Assessment Resources, 1996.
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