Sayson, I. C. (2001). Travel industry resorting to big discounts to stay alive. Manila Times.
芝加哥风格引文Sayson, Ian C. "Travel Industry Resorting to Big Discounts to Stay Alive." Manila Times 2001.
MLA引文Sayson, Ian C. "Travel Industry Resorting to Big Discounts to Stay Alive." Manila Times, 2001.
警告：这些引文格式不一定是100％准确.