(2001). Operational lapses blamed for escape of Abu Sayyaf. Manila Bulletin.
芝加哥风格引文"Operational Lapses Blamed for Escape of Abu Sayyaf." Manila Bulletin 2001.
MLA引文"Operational Lapses Blamed for Escape of Abu Sayyaf." Manila Bulletin, 2001.
警告：这些引文格式不一定是100％准确.