APA (7th ed.) Citation

Savage, S., & Krahn, i. F. (2009). Firmin. Planeta.

Chicago Style (17th ed.) Citation

Savage, Sam, and il. Fernando Krahn. Firmin. Planeta, 2009.

MLA (8th ed.) Citation

Savage, Sam, and il. Fernando Krahn. Firmin. Planeta, 2009.

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