Romulo, B. D. (1999). The Aeta's friendship with the US. IN Editorial [column]. Manila Bulletin.
芝加哥风格引文Romulo, Beth Day. "The Aeta's Friendship with the US. IN Editorial [column]." Manila Bulletin 1999.
MLA引文Romulo, Beth Day. "The Aeta's Friendship with the US. IN Editorial [column]." Manila Bulletin, 1999.
警告：这些引文格式不一定是100％准确.