Piad, T. J. C. Tunnel construction for Metro Manila subway begins. Philippine Daily Inquirer..
芝加哥风格引文Piad, Tyrone Jasper C. "Tunnel Construction for Metro Manila Subway Begins." Philippine Daily Inquirer. .
MLA引文Piad, Tyrone Jasper C. "Tunnel Construction for Metro Manila Subway Begins." Philippine Daily Inquirer., .
警告：这些引文格式不一定是100％准确.