Curtis, S. L. (1997). Using calendar data to study contraceptive use dynamics. Chapel Hill: University of North Carolina.
Citación estilo ChicagoCurtis, Siân L. Using Calendar Data to Study Contraceptive Use Dynamics. Chapel Hill: University of North Carolina, 1997.
Cita MLACurtis, Siân L. Using Calendar Data to Study Contraceptive Use Dynamics. Chapel Hill: University of North Carolina, 1997.
Precaución: Estas citas no son 100% exactas.