Dyfyniad APA

Wallace, H. R., & Masters, L. A. (2006). Personal development for life and work (9th ed.). Thomson/South-Western.

Dyfyniad Arddull Chicago

Wallace, Harold R., and L. Ann Masters. Personal Development for Life and Work. 9th ed. Ohio: Thomson/South-Western, 2006.

Dyfyniad MLA

Wallace, Harold R., and L. Ann Masters. Personal Development for Life and Work. 9th ed. Thomson/South-Western, 2006.

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