Não informado. (1976). Health and Social Work. National Association of Social Workers.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Health and Social Work. Washington: National Association of Social Workers, 1976.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Health and Social Work. National Association of Social Workers, 1976.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.