Cortes, I. R., Feliciano, M. S., & Sison, C. V. (1979). Philippine laws regulating and influencing the vital registration system. University of the Philippines, College of Law.

Cortes, Irene Rian, Myrna S. Feliciano, and Carmelo V. Sison. Philippine Laws Regulating and Influencing the Vital Registration System. Quezon City: University of the Philippines, College of Law, 1979.

Cortes, Irene Rian, et al. Philippine Laws Regulating and Influencing the Vital Registration System. University of the Philippines, College of Law, 1979.