APA (7e ed.) Bronvermelding

Não informado. (1969). Family Planning Perspectives. Allan Guttmacher Institute.

Chicago (17e ed.) Bronvermelding

Não informado. Family Planning Perspectives. New York: Allan Guttmacher Institute, 1969.

MLA (8e ed.) Bronvermelding

Não informado. Family Planning Perspectives. Allan Guttmacher Institute, 1969.

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