Domingo, R. W. Petron returns to black on improved oil prices, market sentiment. Philippine Daily Inquirer.
芝加哥风格引文Domingo, Ronnel W. "Petron Returns to Black on Improved Oil Prices, Market Sentiment." Philippine Daily Inquirer .
MLA引文Domingo, Ronnel W. "Petron Returns to Black on Improved Oil Prices, Market Sentiment." Philippine Daily Inquirer, .
警告：这些引文格式不一定是100％准确.