Smith, P. C., Virina, N., & Zablan, Z. C. (1975). Preliminary estimates of national-level mortality, 1960, 1968 and 1973, and mortality differentials around 1970. University of the Philippines System, Population Institute.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSmith, Peter Colin, Noel Virina, और Zelda C. Zablan. Preliminary Estimates of National-level Mortality, 1960, 1968 and 1973, and Mortality Differentials Around 1970. [Manila]: University of the Philippines System, Population Institute, 1975.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSmith, Peter Colin, et al. Preliminary Estimates of National-level Mortality, 1960, 1968 and 1973, and Mortality Differentials Around 1970. University of the Philippines System, Population Institute, 1975.
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