Ventura, S. M. (1998). Centennial countdown: Earthquakes, typhoons, floods and other acts of God. Philippine Star.
Citazione stile Chigago Style (17a edizione)Ventura, Sylvia Mendez. "Centennial Countdown: Earthquakes, Typhoons, Floods and Other Acts of God." Philippine Star 1998.
Citatione MLA (9a ed.)Ventura, Sylvia Mendez. "Centennial Countdown: Earthquakes, Typhoons, Floods and Other Acts of God." Philippine Star, 1998.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.