Rogacion, M. R. E. (1991). Knowing yourself and others: The eastern enneagram. Rex Book Store.
芝加哥风格引文Rogacion, Mary Rebecca E. Knowing Yourself and Others: The Eastern Enneagram. Manila: Rex Book Store, 1991.
MLA引文Rogacion, Mary Rebecca E. Knowing Yourself and Others: The Eastern Enneagram. Rex Book Store, 1991.
警告：这些引文格式不一定是100％准确.