Achútegui, P. S. d. A synod within a quadricentennial. Philippine studies..
芝加哥风格引文Achútegui, Pedro S. de. "A Synod Within a Quadricentennial." Philippine Studies. .
MLA引文Achútegui, Pedro S. de. "A Synod Within a Quadricentennial." Philippine Studies., .
警告：这些引文格式不一定是100％准确.