APA (7th ed.) Citation

Savage, S., Galí, S., & Krahn, F. (2008). Firmin. Columna.

Chicago Style (17th ed.) Citation

Savage, Sam, Sabina Galí, and Fernando Krahn. Firmin. Barcelona: Columna, 2008.

MLA (9th ed.) Citation

Savage, Sam, et al. Firmin. Columna, 2008.