Eco, U. (1986). Art and beauty in the middle ages. Yale University.
芝加哥风格引文Eco, Umberto. Art and Beauty in the Middle Ages. London: Yale University, 1986.
MLA引文Eco, Umberto. Art and Beauty in the Middle Ages. Yale University, 1986.
警告：这些引文格式不一定是100％准确.