Isip, R. (1997). Pampanga river spawns diseases. Manila Chronicle.
Chicagoスタイル(17版)引用形式Isip, Rendy. "Pampanga River Spawns Diseases." Manila Chronicle 1997.
MLA(9版)引用形式Isip, Rendy. "Pampanga River Spawns Diseases." Manila Chronicle, 1997.
警告: この引用は必ずしも正確ではありません.