Cita APA (7a ed.)

Weaver, U. E. W. The Island of the Day Before. G.Britain.

Cita Chicago Style (17a ed.)

Weaver, Umberto Eco William. The Island of the Day Before. G.Britain.

Cita MLA (9a ed.)

Weaver, Umberto Eco William. The Island of the Day Before. G.Britain.