Bizzen, R. G. (1999). Mutual defense treaty is needed, valid. Manila Bulletin.
芝加哥风格引文Bizzen, Rodolfo G. "Mutual Defense Treaty Is Needed, Valid." Manila Bulletin 1999.
MLA引文Bizzen, Rodolfo G. "Mutual Defense Treaty Is Needed, Valid." Manila Bulletin, 1999.
警告：这些引文格式不一定是100％准确.