(1997). O & M Philippines wins grand prix at London internaitonal awards. Manila Bulletin.
芝加哥风格引文"O & M Philippines Wins Grand Prix at London Internaitonal Awards." Manila Bulletin 1997.
MLA引文"O & M Philippines Wins Grand Prix at London Internaitonal Awards." Manila Bulletin, 1997.
警告：这些引文格式不一定是100％准确.