Men opening steam valve on page 13: Courtesy Philippine National Oil Corporation; pipeline on page 13 and aerial view and inset of electrical generating plant on page 15: Courtesy of National Power Corporation (Philippines); production well and steam pipeline on page 15: Courtesy of Philippine Geothermal, Inc.
Tiek atvērts tvaika ventilis, 13. lappusē: Courtesy Philippine National Oil Corporation; cauruļvadi 13. lappusē, kopaina un elektrospēkstacija (priekšplānā) 15. lappusē: Courtesy of National Power Corporation (Philippines); karsto ūdeņu ieguves urbumi un tvaikvadi 15. lappusē: Courtesy of Philippine Geothermal, Inc.