(2007). PPA @ 33: Accelerating maritime trade through infrastructure and technology. Philippine Star.
芝加哥风格引文"PPA @ 33: Accelerating Maritime Trade Through Infrastructure and Technology." Philippine Star 2007.
MLA引文"PPA @ 33: Accelerating Maritime Trade Through Infrastructure and Technology." Philippine Star, 2007.
警告：这些引文格式不一定是100％准确.