APA (7th ed.) Citation

Eco, U. (2007). On ugliness / Umberto Eco. Harvill Secker.

Chicago Style (17th ed.) Citation

Eco, Umberto. On Ugliness / Umberto Eco. London: Harvill Secker, 2007.

MLA (9th ed.) Citation

Eco, Umberto. On Ugliness / Umberto Eco. Harvill Secker, 2007.

Warning: These citations may not always be 100% accurate.