Villanueva, O. (1997). Extension of IT past welcomed. Manila Chronicle.
芝加哥风格引文Villanueva, Othel. "Extension of IT Past Welcomed." Manila Chronicle 1997.
MLA引文Villanueva, Othel. "Extension of IT Past Welcomed." Manila Chronicle, 1997.
警告：这些引文格式不一定是100％准确.