The Ilocos and Cordillera provinces : a general physical and socio-economic profile - Cleto, Romeo B.; Dehn, Christoph H.; Padilla, Hilario J. (National Secretariat, Baguio City (Philippines) : Katinnulong Daguiti Umili It Akmang Teknolohiya (SIBAT), 1986)
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Keywords: Luzon (Philippines) -- Economic conditions; Luzon (Philippines) -- Social conditions