Tirol, P. (1999). When betel chewing was in. Philippine Daily Inquirer.
芝加哥风格引文Tirol, Paulo. "When Betel Chewing Was in." Philippine Daily Inquirer 1999.
MLA引文Tirol, Paulo. "When Betel Chewing Was in." Philippine Daily Inquirer, 1999.
警告：这些引文格式不一定是100％准确.