APA (7e ed.) Bronvermelding

Não informado. (1972). Current literature in family planning. Planned Parenthood Federation of America.

Chicago (17e ed.) Bronvermelding

Não informado. Current Literature in Family Planning. New York: Planned Parenthood Federation of America, 1972.

MLA (8e ed.) Bronvermelding

Não informado. Current Literature in Family Planning. Planned Parenthood Federation of America, 1972.

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