APA (7th ed.) Citation

Philippines. National Economic and Development Authority & Philippines. Regional Development Council, Region I. (1983). Regional development profile [of] Ilocos (Region I), CY 1983. National Economic and Development Authority.

Chicago Style (17th ed.) Citation

Philippines. National Economic and Development Authority and Region I. Philippines. Regional Development Council. Regional Development Profile [of] Ilocos (Region I), CY 1983. San Fernando, La Union: National Economic and Development Authority, 1983.

MLA (9th ed.) Citation

Philippines. National Economic and Development Authority and Region I. Philippines. Regional Development Council. Regional Development Profile [of] Ilocos (Region I), CY 1983. National Economic and Development Authority, 1983.