Philippines. Department of Energy. (2010). Directing the Preparations for the Trading of Ancillary Services in the Philippine Wholesale Electricity Spot Market ("WESM"). Philippine Daily Inquirer.
Cita Chicago Style (17a ed.)Philippines. Department of Energy. "Directing the Preparations for the Trading of Ancillary Services in the Philippine Wholesale Electricity Spot Market ("WESM")." Philippine Daily Inquirer 2010.
Cita MLA (9a ed.)Philippines. Department of Energy. "Directing the Preparations for the Trading of Ancillary Services in the Philippine Wholesale Electricity Spot Market ("WESM")." Philippine Daily Inquirer, 2010.
Precaución: Estas citas no son 100% exactas.