Não informado. (1976). Health and Social Work. National Association of Social Workers.
Chicago (17e ed.) BronvermeldingNão informado. Health and Social Work. Washington: National Association of Social Workers, 1976.
MLA (8e ed.) BronvermeldingNão informado. Health and Social Work. National Association of Social Workers, 1976.
Let op: Deze citaties zijn niet altijd 100% accuraat.