Philippines. National Economic and Development Authority. Regional Development Council. (1983). Ilocos Region (Region I) annual development performance report, CY 1982. Regional Development Council-National Economic Development Authority.
Citazione stile Chigago Style (17a edizione)Philippines. National Economic and Development Authority. Regional Development Council. Ilocos Region (Region I) Annual Development Performance Report, CY 1982. San Fernando, La Union: Regional Development Council-National Economic Development Authority, 1983.
Citatione MLA (9a ed.)Philippines. National Economic and Development Authority. Regional Development Council. Ilocos Region (Region I) Annual Development Performance Report, CY 1982. Regional Development Council-National Economic Development Authority, 1983.