Olchondra, R. T. First Gen posts drop in income on lukewarm hydro, geo power sales. Philippine Daily Inquirer.
芝加哥风格引文Olchondra, Riza T. "First Gen Posts Drop in Income on Lukewarm Hydro, Geo Power Sales." Philippine Daily Inquirer .
MLA引文Olchondra, Riza T. "First Gen Posts Drop in Income on Lukewarm Hydro, Geo Power Sales." Philippine Daily Inquirer, .
警告：这些引文格式不一定是100％准确.