Boulter, N. (1999). The art of HRD: People and competencies. Crest Publishing House.
Chicago Style (17. basım) AtıfBoulter, Nick. The Art of HRD: People and Competencies. New Delhi: Crest Publishing House, 1999.
MLA (8th ed.) AtıfBoulter, Nick. The Art of HRD: People and Competencies. Crest Publishing House, 1999.
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