Sayson, I. C. (2001). Travel industry resorting to big discounts to stay alive. Manila Times.
Citazione stile Chigago Style (17a edizione)Sayson, Ian C. "Travel Industry Resorting to Big Discounts to Stay Alive." Manila Times 2001.
Citatione MLA (9a ed.)Sayson, Ian C. "Travel Industry Resorting to Big Discounts to Stay Alive." Manila Times, 2001.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.