(1974). Population reports. Series A, Oral contraceptives. Washington, D.C.: Population Information Program.
Citación estilo ChicagoPopulation Reports. Series A, Oral Contraceptives. Washington, D.C.: Population Information Program, 1974.
Cita MLAPopulation Reports. Series A, Oral Contraceptives. Washington, D.C.: Population Information Program, 1974.
Precaución: Estas citas no son 100% exactas.