Gracia, J. J. E. (1984). Introduction to the problem of individuation in the early Middle Ages. Philosophia-Verlag.
芝加哥风格引文Gracia, Jorge J. E. Introduction to the Problem of Individuation in the Early Middle Ages. München [u.a.]: Philosophia-Verlag, 1984.
MLA引文Gracia, Jorge J. E. Introduction to the Problem of Individuation in the Early Middle Ages. Philosophia-Verlag, 1984.
警告：这些引文格式不一定是100％准确.