Calleja, D. O. (2000). Epidemya, mudflow: Mayon, may 2 panganib. Kabayan.
Chicagoスタイル(17版)引用形式Calleja, Danny O. "Epidemya, Mudflow: Mayon, May 2 Panganib." Kabayan 2000.
MLA(9版)引用形式Calleja, Danny O. "Epidemya, Mudflow: Mayon, May 2 Panganib." Kabayan, 2000.
警告: この引用は必ずしも正確ではありません.