Cruz, I. A. (1997). Heroes all. IN Separate opinion [column]. Philippine Daily Inquirer.
芝加哥风格引文Cruz, Isagani A. "Heroes All. IN Separate Opinion [column]." Philippine Daily Inquirer 1997.
MLA引文Cruz, Isagani A. "Heroes All. IN Separate Opinion [column]." Philippine Daily Inquirer, 1997.
警告：这些引文格式不一定是100％准确.