Nazaret, F. V., Mortal, D., M., & Regala, D. A. (1977). Working life tables for males and females in the Philippines, 1970. National Census and Statistics Office.
Lua i Stíl Chicago (17ú heag.)Nazaret, Francisco V., Dolores Mortal, M, agus Dulce A. Regala. Working Life Tables for Males and Females in the Philippines, 1970. Manila: National Census and Statistics Office, 1977.
Lua MLA (9ú heag.)Nazaret, Francisco V., et al. Working Life Tables for Males and Females in the Philippines, 1970. National Census and Statistics Office, 1977.
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