National Conference on Social Welfare. Group work and community organization; papers presented at the annual forum. Columbia University Press.
Παραπομπή σε μορφή Chicago (17η εκδ.)National Conference on Social Welfare. Group Work and Community Organization; Papers Presented at the Annual Forum. New York: Columbia University Press.
Παραπομπή σε μορφή MLA (9th εκδ.)National Conference on Social Welfare. Group Work and Community Organization; Papers Presented at the Annual Forum. Columbia University Press.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.