Porcalla, D. (1997). Ozone victims cry out from the grave. Philippine Star.
Chicagoスタイル(17版)引用形式Porcalla, Delon. "Ozone Victims Cry Out from the Grave." Philippine Star 1997.
MLA(9版)引用形式Porcalla, Delon. "Ozone Victims Cry Out from the Grave." Philippine Star, 1997.
警告: この引用は必ずしも正確ではありません.