Cita APA

Abbas, I., & Kalule-Sabiti, I. (1985). The proximate determinants of fertility in North Sudan. Voorburg, Netherlands: International Statistical Institute.

Citación estilo Chicago

Abbas, Ibrahim, y Ishmael Kalule-Sabiti. The Proximate Determinants of Fertility in North Sudan. Voorburg, Netherlands: International Statistical Institute, 1985.

Cita MLA

Abbas, Ibrahim, y Ishmael Kalule-Sabiti. The Proximate Determinants of Fertility in North Sudan. Voorburg, Netherlands: International Statistical Institute, 1985.