Velasco, M. M. NGCP completes projects for Luzon grid upgrade. IN Business News. Manila Bulletin.
芝加哥风格引文Velasco, Myrna M. "NGCP Completes Projects for Luzon Grid Upgrade. IN Business News." Manila Bulletin .
MLA引文Velasco, Myrna M. "NGCP Completes Projects for Luzon Grid Upgrade. IN Business News." Manila Bulletin, .
警告：这些引文格式不一定是100％准确.