Unson, J. M. (1998). No. 2 Abu Sayyaf chief killed by comrades. Manila Times.
芝加哥风格引文Unson, John M. "No. 2 Abu Sayyaf Chief Killed by Comrades." Manila Times 1998.
MLA引文Unson, John M. "No. 2 Abu Sayyaf Chief Killed by Comrades." Manila Times, 1998.
警告：这些引文格式不一定是100％准确.