Cita APA

Eco Umberto & William Weaver. (1995). The Island of the Day Before. Secker Warburg.

Chicago Edition Citation

Eco Umberto i William Weaver. The Island of the Day Before. London: Secker Warburg, 1995.

Cita MLA

Eco Umberto i William Weaver. The Island of the Day Before. Secker Warburg, 1995.