Velasco, M. M. (1999). PNOC petrochen park in Bataan declared as special economic zone. Manila Bulletin.
Čikaški stil citiranja (17. izdanje)Velasco, Myrna M. "PNOC Petrochen Park in Bataan Declared as Special Economic Zone." Manila Bulletin 1999.
MLA način citiranja (9. izdanje)Velasco, Myrna M. "PNOC Petrochen Park in Bataan Declared as Special Economic Zone." Manila Bulletin, 1999.
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