APA (7th ed.) Citation

Manganelli, G., Calvino, I., & Gumpert, C.. (2006). Hilarotragoedia. Siruela.

Chicago Style (17th ed.) Citation

Manganelli, Giorgio, Italo Calvino, and Carlos Gumpert. Hilarotragoedia. Madrid: Siruela, 2006.

MLA (9th ed.) Citation

Manganelli, Giorgio, et al. Hilarotragoedia. Siruela, 2006.