(1997). Further upgrade in RP rating seen. IN Perspective [column]. Philippine Daily Inquirer.
芝加哥风格引文"Further Upgrade in RP Rating Seen. IN Perspective [column]." Philippine Daily Inquirer 1997.
MLA引文"Further Upgrade in RP Rating Seen. IN Perspective [column]." Philippine Daily Inquirer, 1997.
警告:这些引文格式不一定是100%准确.