APA aipamena

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

Chicago Style aipamena

Eco, Umberto. On Beauty. London: Secker & Warburg, 2004.

MLA aipamena

Eco, Umberto. On Beauty. Secker & Warburg, 2004.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.