Quismorio, E. A. (2010). Oil firms tweak prices. Manila Bulletin.
Citación estilo ChicagoQuismorio, Ellson A. "Oil Firms Tweak Prices." Manila Bulletin 2010.
Cita MLAQuismorio, Ellson A. "Oil Firms Tweak Prices." Manila Bulletin, 2010.
Warning: These citations may not always be 100% accurate.