Augustine, o. H., & Eno, R. B. (1989). Letters. Catholic University of America Press.
芝加哥风格引文Augustine, of Hippo, 与 Robert B. Eno. Letters. Washington: Catholic University of America Press, 1989.
MLA引文Augustine, of Hippo, 与 Robert B. Eno. Letters. Catholic University of America Press, 1989.
警告：这些引文格式不一定是100％准确.