Wallace, H. R., & Masters, L. A. (2001). Personal development for life and work (8th ed.). South-Western.
Chicago Style (17. basım) AtıfWallace, Harold R., ve L. Ann Masters. Personal Development for Life and Work. 8th ed. Cincinnati, Ohio: South-Western, 2001.
MLA (9th ed.) AtıfWallace, Harold R., ve L. Ann Masters. Personal Development for Life and Work. 8th ed. South-Western, 2001.
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