Cita APA (7th ed.)

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.

Cita Chicago (17th ed.)

Nazaret, Francisco V., Dolores Mortal, M, i Dulce A. Regala. Working Life Tables for Males and Females in the Philippines, 1970. Manila: National Census and Statistics Office, 1977.

Cita MLA (9th ed.)

Nazaret, Francisco V., et al. Working Life Tables for Males and Females in the Philippines, 1970. National Census and Statistics Office, 1977.