(1973). Population distribution and its projection, province of Isabela: The social and environmental impact of the Magat river project. Institute of Planning, University of the Philippines.
Lua i Stíl Chicago (17ú heag.)Population Distribution and Its Projection, Province of Isabela: The Social and Environmental Impact of the Magat River Project. Quezon City: Institute of Planning, University of the Philippines, 1973.
Lua MLA (9ú heag.)Population Distribution and Its Projection, Province of Isabela: The Social and Environmental Impact of the Magat River Project. Institute of Planning, University of the Philippines, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.