Villegas, B. M. (2003). How to be in the right business. IN Business and society [column]. Manila Bulletin.
芝加哥风格引文Villegas, Bernardo M. "How to Be in the Right Business. IN Business and Society [column]." Manila Bulletin 2003.
MLA引文Villegas, Bernardo M. "How to Be in the Right Business. IN Business and Society [column]." Manila Bulletin, 2003.
警告：这些引文格式不一定是100％准确.