Masters, L. A., Wallace, H. R., & Harwood, L. (2011). Personal development for life and work (10th ed.). South-Western Cengage Learning.
Lua i Stíl Chicago (17ú heag.)Masters, L. Ann, Harold R. Wallace, agus Lauri Harwood. Personal Development for Life and Work. 10th ed. Australia, Mason, OH: South-Western Cengage Learning, 2011.
Lua MLA (9ú heag.)Masters, L. Ann, et al. Personal Development for Life and Work. 10th ed. South-Western Cengage Learning, 2011.
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