APA-referens (7:e uppl.)
Lang, N. C. (2010). Group work practice to advance social competence: A specialized methodology for social work. Columbia University Press.
Chicago-referens (17:e uppl.)
Lang, Norma C. Group Work Practice to Advance Social Competence: A Specialized Methodology for Social Work. New York, NY: Columbia University Press, 2010.
MLA-referens (9:e uppl.)
Lang, Norma C. Group Work Practice to Advance Social Competence: A Specialized Methodology for Social Work. Columbia University Press, 2010.
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