Isla, P. A. (2004). Transport companies using natural gas to get tax incentives from govt. Manila Times.
Chicago-Zitierstil (17. Ausg.)Isla, Paul Anthony. "Transport Companies Using Natural Gas to Get Tax Incentives from Govt." Manila Times 2004.
MLA-Zitierstil (9. Ausg.)Isla, Paul Anthony. "Transport Companies Using Natural Gas to Get Tax Incentives from Govt." Manila Times, 2004.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.