Isla, P. A. A. (2005). Coal-to-liquid fuel production feasible. Manila Times.
Citación estilo ChicagoIsla, Paul Anthony A. "Coal-to-liquid Fuel Production Feasible." Manila Times 2005.
Cita MLAIsla, Paul Anthony A. "Coal-to-liquid Fuel Production Feasible." Manila Times, 2005.
Warning: These citations may not always be 100% accurate.