Velasco, M. M. (2018). Sixth oil price hike this year takes effect. Manila Bulletin.
芝加哥风格引文Velasco, Myrna M. "Sixth Oil Price Hike This Year Takes Effect." Manila Bulletin 2018.
MLA引文Velasco, Myrna M. "Sixth Oil Price Hike This Year Takes Effect." Manila Bulletin, 2018.
警告：这些引文格式不一定是100％准确.