Villanueva, M. A. (2003). Without legislation, gov't has no choice but to enforce Clean Air Act. Philippine Star.
Chicagoスタイル(17版)引用形式Villanueva, Marichu A. "Without Legislation, Gov't Has No Choice but to Enforce Clean Air Act." Philippine Star 2003.
MLA(9版)引用形式Villanueva, Marichu A. "Without Legislation, Gov't Has No Choice but to Enforce Clean Air Act." Philippine Star, 2003.
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