Cita APA (7th ed.)
Eco, U. (1986). Art and beauty in the middle ages. Yale University.
Cita Chicago (17th ed.)
Eco, Umberto. Art and Beauty in the Middle Ages. London: Yale University, 1986.
Cita MLA (9th ed.)
Eco, Umberto. Art and Beauty in the Middle Ages. Yale University, 1986.
Atenció: Aquestes cites poden no estar 100% correctes.