Cahiles, B. A. (1998). MRT line 4 cost upgraded by 40%. Manila Bulletin.
Cita Chicago Style (17a ed.)Cahiles, Bernie A. "MRT Line 4 Cost Upgraded by 40%." Manila Bulletin 1998.
Cita MLA (9a ed.)Cahiles, Bernie A. "MRT Line 4 Cost Upgraded by 40%." Manila Bulletin, 1998.
Precaución: Estas citas no son 100% exactas.