Grafilo, J. (2001). Manila garbage woes ease as Filipinos learn to recycle. Manila Bulletin.
Chicagoスタイル(17版)引用形式Grafilo, John. "Manila Garbage Woes Ease as Filipinos Learn to Recycle." Manila Bulletin 2001.
MLA(9版)引用形式Grafilo, John. "Manila Garbage Woes Ease as Filipinos Learn to Recycle." Manila Bulletin, 2001.
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