Sayed, H. A., El-Zanaty, F. H., & Guhl, N. H. (1993). Quality of Family Planning Services in Egypt 1992. Cairo Demographic Center.
Citazione stile Chigago Style (17a edizione)Sayed, Hussein Abdel-Aziz, Fatma H. El-Zanaty, e Nora H. Guhl. Quality of Family Planning Services in Egypt 1992. Cairo: Cairo Demographic Center, 1993.
Citatione MLA (9a ed.)Sayed, Hussein Abdel-Aziz, et al. Quality of Family Planning Services in Egypt 1992. Cairo Demographic Center, 1993.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.