Velasco, M. M. Power grid interconnections gaining headway. IN Business. Manila Bulletin.
Cita Chicago (17th ed.)Velasco, Myrna M. "Power Grid Interconnections Gaining Headway. IN Business." Manila Bulletin .
Cita MLA (9th ed.)Velasco, Myrna M. "Power Grid Interconnections Gaining Headway. IN Business." Manila Bulletin, .
Atenció: Aquestes cites poden no estar 100% correctes.