National Conference of Social Work (U.S.). Annual Conference. (1939). Proceedings of the National Conference of Social Work, selected papers ... Annual Conference. Published for the Conference by Columbia University Press.
Dyfyniad Arddull ChicagoNational Conference of Social Work (U.S.). Annual Conference. Proceedings of the National Conference of Social Work, Selected Papers ... Annual Conference. New York: Published for the Conference by Columbia University Press, 1939.
Dyfyniad MLANational Conference of Social Work (U.S.). Annual Conference. Proceedings of the National Conference of Social Work, Selected Papers ... Annual Conference. Published for the Conference by Columbia University Press, 1939.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.