Cita APA (7th ed.)

Bongaarts, J. (1991). The KAP-gap and the unmet need for contraception. Population Council.

Cita Chicago (17th ed.)

Bongaarts, John. The KAP-gap and the Unmet Need for Contraception. New York: Population Council, 1991.

Cita MLA (9th ed.)

Bongaarts, John. The KAP-gap and the Unmet Need for Contraception. Population Council, 1991.