David, R. J. (1999). The World of the six billion baby. IN At large [column]. Philippine Daily Inquirer.
芝加哥风格引文David, Ring Jimenez. "The World of the Six Billion Baby. IN At Large [column]." Philippine Daily Inquirer 1999.
MLA引文David, Ring Jimenez. "The World of the Six Billion Baby. IN At Large [column]." Philippine Daily Inquirer, 1999.
警告：这些引文格式不一定是100％准确.