Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.