Villanueva, M. A. (1997). Ramos accepts De Villa's resignation effective Sept. 15. Philippine Star.
芝加哥风格引文Villanueva, Marichu A. "Ramos Accepts De Villa's Resignation Effective Sept. 15." Philippine Star 1997.
MLA引文Villanueva, Marichu A. "Ramos Accepts De Villa's Resignation Effective Sept. 15." Philippine Star, 1997.
警告：这些引文格式不一定是100％准确.