APA (7th ed.) Citation

Eco, U. (1994). Signo (2a ed.). Labor.

Chicago Style (17th ed.) Citation

Eco, Umberto. Signo. 2a ed. Barcelona: Labor, 1994.

MLA (9th ed.) Citation

Eco, Umberto. Signo. 2a ed. Labor, 1994.

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