Velasco, M. M. Policy makers weigh future of gas as energy resource. Manila Bulletin.
芝加哥风格引文Velasco, Myrna M. "Policy Makers Weigh Future of Gas as Energy Resource." Manila Bulletin .
MLA引文Velasco, Myrna M. "Policy Makers Weigh Future of Gas as Energy Resource." Manila Bulletin, .
警告：这些引文格式不一定是100％准确.