Aldaba, R. (2005). Does a cartel run the oil industry. Philippine Daily Inquirer.
芝加哥风格引文Aldaba, Rafaelita. "Does a Cartel Run the Oil Industry." Philippine Daily Inquirer 2005.
MLA引文Aldaba, Rafaelita. "Does a Cartel Run the Oil Industry." Philippine Daily Inquirer, 2005.
警告：这些引文格式不一定是100％准确.