APA Citation

Sfar, J., Walter, 1. .., & Trondheim, L. (2007). La mazmorra Zenit. Barcelona: Norma.

Chicago style citation

Sfar, Joann, Walter, and Lewis Trondheim. La Mazmorra Zenit. Barcelona: Norma, 2007.

MLA citation

Sfar, Joann, Walter, and Lewis Trondheim. La Mazmorra Zenit. Barcelona: Norma, 2007.

Warning: these citations may not always be totally accurate