Velasco, M. M. Policy makers weigh future of gas as energy resource. Manila Bulletin.
Chicago-viite (17. p.)Velasco, Myrna M. "Policy Makers Weigh Future of Gas as Energy Resource." Manila Bulletin .
MLA-viite (9. p.)Velasco, Myrna M. "Policy Makers Weigh Future of Gas as Energy Resource." Manila Bulletin, .
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