Cita APA

Sivin, I. (1974). Contraception and fertility change in the international postpartum program. Population Council; [distributed by Key Book Service, Bridgeport, Conn..

Citación estilo Chicago

Sivin, Irving. Contraception and Fertility Change in the International Postpartum Program. [New York]: Population Council; [distributed by Key Book Service, Bridgeport, Conn., 1974.

Cita MLA

Sivin, Irving. Contraception and Fertility Change in the International Postpartum Program. Population Council; [distributed by Key Book Service, Bridgeport, Conn., 1974.