APA (7e ed.) Bronvermelding

Não informado. (1977). Social work research and abstracts. National Association of Social Workers.

Chicago (17e ed.) Bronvermelding

Não informado. Social Work Research and Abstracts. New York: National Association of Social Workers, 1977.

MLA (8e ed.) Bronvermelding

Não informado. Social Work Research and Abstracts. National Association of Social Workers, 1977.

Let op: Deze citaties zijn niet altijd 100% accuraat.