O'Hagan, K. (1996). Competence in social work practice: A practical guide for professionals. J. Kingsley Publishers.
Čikaški stil citiranja (17. izdanje)O'Hagan, Kieran. Competence in Social Work Practice: A Practical Guide for Professionals. London: J. Kingsley Publishers, 1996.
MLA način citiranja (9. izdanje)O'Hagan, Kieran. Competence in Social Work Practice: A Practical Guide for Professionals. J. Kingsley Publishers, 1996.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.