Boulter, N. (1999). The art of HRD: People and competencies. Crest Publishing House.
Chicago-referens (17:e uppl.)Boulter, Nick. The Art of HRD: People and Competencies. New Delhi: Crest Publishing House, 1999.
MLA-referens (8:e uppl.)Boulter, Nick. The Art of HRD: People and Competencies. Crest Publishing House, 1999.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.