Dones, L. (1997). DENR, sanctions readied: Most Metro companies violate pollution rules. Philippine Star.
Chicago Style (17th ed.) CitationDones, Liberty. "DENR, Sanctions Readied: Most Metro Companies Violate Pollution Rules." Philippine Star 1997.
MLA引文Dones, Liberty. "DENR, Sanctions Readied: Most Metro Companies Violate Pollution Rules." Philippine Star, 1997.
警告:這些引文格式不一定是100%准確.