Katigbak, A. F. (2004). Oil price soars above $45/661 for 1st time. Philippine Star.
芝加哥风格引文Katigbak, Antonio F. "Oil Price Soars Above $45/661 for 1st Time." Philippine Star 2004.
MLA引文Katigbak, Antonio F. "Oil Price Soars Above $45/661 for 1st Time." Philippine Star, 2004.
警告：这些引文格式不一定是100％准确.