Borja, A. (2003). WB official confirms reports on air pollution level in Baguio. Manila Bulletin.
Chicagoスタイル(17版)引用形式Borja, Adam. "WB Official Confirms Reports on Air Pollution Level in Baguio." Manila Bulletin 2003.
MLA(9版)引用形式Borja, Adam. "WB Official Confirms Reports on Air Pollution Level in Baguio." Manila Bulletin, 2003.
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