Não informado. (1970). Social work today. British Association of Social Workers.
Chicago (17e ed.) BronvermeldingNão informado. Social Work Today. London: British Association of Social Workers, 1970.
MLA (8e ed.) BronvermeldingNão informado. Social Work Today. British Association of Social Workers, 1970.
Let op: Deze citaties zijn niet altijd 100% accuraat.