Northen, H., & Kurland, R. (2001). Social work with groups. New York: Columbia University Press.
Chicago Style CitationNorthen, Helen, i Roselle Kurland. Social Work With Groups. New York: Columbia University Press, 2001.
Cita MLANorthen, Helen, i Roselle Kurland. Social Work With Groups. New York: Columbia University Press, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.