Velasco, M. M. (2004). Gov't sets mandatory use of ethanol blend. Manila Bulletin.
Cita Chicago (17th ed.)Velasco, Myrna M. "Gov't Sets Mandatory Use of Ethanol Blend." Manila Bulletin 2004.
Cita MLA (9th ed.)Velasco, Myrna M. "Gov't Sets Mandatory Use of Ethanol Blend." Manila Bulletin, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.