Lopez, E. H. (2007). Graham Ridgway, CEO, Touch paper. IN Pro-files [column]. Manila Bulletin.
芝加哥风格引文Lopez, Edu H. "Graham Ridgway, CEO, Touch Paper. IN Pro-files [column]." Manila Bulletin 2007.
MLA引文Lopez, Edu H. "Graham Ridgway, CEO, Touch Paper. IN Pro-files [column]." Manila Bulletin, 2007.
警告：这些引文格式不一定是100％准确.