Não informado. (1972). Current literature in family planning. Planned Parenthood Federation of America.
Style de citation Chicago (17e éd.)Não informado. Current Literature in Family Planning. New York: Planned Parenthood Federation of America, 1972.
Style de citation MLA (8e éd.)Não informado. Current Literature in Family Planning. Planned Parenthood Federation of America, 1972.
Attention : ces citations peuvent ne pas être correctes à 100%.