Velasco, M. M. (2004). Gov't sets mandatory use of ethanol blend. Manila Bulletin.
芝加哥风格引文Velasco, Myrna M. "Gov't Sets Mandatory Use of Ethanol Blend." Manila Bulletin 2004.
MLA引文Velasco, Myrna M. "Gov't Sets Mandatory Use of Ethanol Blend." Manila Bulletin, 2004.
警告：这些引文格式不一定是100％准确.