Cahiles, B. A. (1998). MRT line 4 cost upgraded by 40%. Manila Bulletin.
Dyfyniad Arddull ChicagoCahiles, Bernie A. "MRT Line 4 Cost Upgraded by 40%." Manila Bulletin 1998.
Dyfyniad MLACahiles, Bernie A. "MRT Line 4 Cost Upgraded by 40%." Manila Bulletin, 1998.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.