Marfil, M. (1999). Erap names old DOST hand science secretary. Philippine Daily Inquirer.
芝加哥风格引文Marfil, Martin. "Erap Names Old DOST Hand Science Secretary." Philippine Daily Inquirer 1999.
MLA引文Marfil, Martin. "Erap Names Old DOST Hand Science Secretary." Philippine Daily Inquirer, 1999.
警告：这些引文格式不一定是100％准确.