International Program of Laboratories for Population Statistics. (1976). Proceedings of the sixth international POPLAB conference: Civil registration and vital statistics : The Hague. International Program of Laboratories for Population Statistics, Dept. of Biostatistics, School of Public Health Carolina Population Center, University of North Carolina at Chapel Hill.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रInternational Program of Laboratories for Population Statistics. Proceedings of the Sixth International POPLAB Conference: Civil Registration and Vital Statistics : The Hague. Chapel Hill, N.C: International Program of Laboratories for Population Statistics, Dept. of Biostatistics, School of Public Health Carolina Population Center, University of North Carolina at Chapel Hill, 1976.
एमएलए (9वां संस्करण) प्रशस्ति पत्रInternational Program of Laboratories for Population Statistics. Proceedings of the Sixth International POPLAB Conference: Civil Registration and Vital Statistics : The Hague. International Program of Laboratories for Population Statistics, Dept. of Biostatistics, School of Public Health Carolina Population Center, University of North Carolina at Chapel Hill, 1976.