Duque, M. Q. S. (2002). Journey of 2 presidents. IN Seasons [column]. Manila Bulletin.
芝加哥风格引文Duque, Mita Q. Sison. "Journey of 2 Presidents. IN Seasons [column]." Manila Bulletin 2002.
MLA引文Duque, Mita Q. Sison. "Journey of 2 Presidents. IN Seasons [column]." Manila Bulletin, 2002.
警告：这些引文格式不一定是100％准确.