Sy, G. S. (2007). Scrotal masses. IN Life extension [column]. Manila Bulletin.
芝加哥风格引文Sy, Gary S. "Scrotal Masses. IN Life Extension [column]." Manila Bulletin 2007.
MLA引文Sy, Gary S. "Scrotal Masses. IN Life Extension [column]." Manila Bulletin, 2007.
警告：这些引文格式不一定是100％准确.