APA aipamena

Eco, U. (2007). On ugliness. Rizzoli.

Chicago Style aipamena

Eco, Umberto. On Ugliness. New York: Rizzoli, 2007.

MLA aipamena

Eco, Umberto. On Ugliness. Rizzoli, 2007.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.