Villanueva, D. (1997). Cavitenos unite vs. ecology problems. Manila Bulletin.
Chicagoスタイル(17版)引用形式Villanueva, Del. "Cavitenos Unite Vs. Ecology Problems." Manila Bulletin 1997.
MLA(9版)引用形式Villanueva, Del. "Cavitenos Unite Vs. Ecology Problems." Manila Bulletin, 1997.
警告: この引用は必ずしも正確ではありません.