Commission on Population, Philippines. Department of Education, National Seminar on Population Education (1st : 1971 : St. Joseph's College), Cayari, R., Elevazo, A., & Fernandez, L. (1971). Population education: A matter of urgency. [s.n.].
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCommission on Population, Philippines. Department of Education, National Seminar on Population Education (1st : 1971 : St. Joseph's College), R.M Cayari, A.O Elevazo, और L.B Fernandez. Population Education: A Matter of Urgency. Quezon City: [s.n.], 1971.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCommission on Population, et al. Population Education: A Matter of Urgency. [s.n.], 1971.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.