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