De Jesus, A. (2008). Steel a green material. Philippine Daily Inquirer.
芝加哥风格引文De Jesus, Amado. "Steel a Green Material." Philippine Daily Inquirer 2008.
MLA引文De Jesus, Amado. "Steel a Green Material." Philippine Daily Inquirer, 2008.
警告：这些引文格式不一定是100％准确.