Casayuran, M. B. (2003). Senate leaders: No to Charter change. Manila Bulletin.
芝加哥风格引文Casayuran, Mario B. "Senate Leaders: No to Charter Change." Manila Bulletin 2003.
MLA引文Casayuran, Mario B. "Senate Leaders: No to Charter Change." Manila Bulletin, 2003.
警告：这些引文格式不一定是100％准确.