Northen, H., & Kurland, R. (2001). Social work with groups. New York: Columbia University Press.
Stile di citazione ChicagoNorthen, Helen, e Roselle Kurland. Social Work With Groups. New York: Columbia University Press, 2001.
Citazione MLANorthen, Helen, e Roselle Kurland. Social Work With Groups. New York: Columbia University Press, 2001.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.