United Nations Expert Group Meeting on Measuring the Dynamics of Contraceptive Use New York. (1991). Measuring the dynamics of contraceptive use: Proceedings of the United Nations Expert Group Meeting on Measuring the Dynamics of Contraceptive Use, New York, 5-7 December 1988. United Nations.
Παραπομπή σε μορφή Chicago (17η εκδ.)United Nations Expert Group Meeting on Measuring the Dynamics of Contraceptive Use New York. Measuring the Dynamics of Contraceptive Use: Proceedings of the United Nations Expert Group Meeting on Measuring the Dynamics of Contraceptive Use, New York, 5-7 December 1988. New York: United Nations, 1991.
Παραπομπή σε μορφή MLA (8th εκδ.)United Nations Expert Group Meeting on Measuring the Dynamics of Contraceptive Use New York. Measuring the Dynamics of Contraceptive Use: Proceedings of the United Nations Expert Group Meeting on Measuring the Dynamics of Contraceptive Use, New York, 5-7 December 1988. United Nations, 1991.
