APA (7th ed.) Citation

Eco, U., & Eco, U. (2004). On beauty. Secker & Warburg.

Chicago Style (17th ed.) Citation

Eco, Umberto, and Umberto;McEwen Eco. On Beauty. Secker & Warburg, 2004.

MLA (9th ed.) Citation

Eco, Umberto, and Umberto;McEwen Eco. On Beauty. Secker & Warburg, 2004.

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