APA (7th ed.) Citation

Zafon, C. R., & Graves, L. (2001). The shadow of the wind. Penguin Books.

Chicago Style (17th ed.) Citation

Zafon, Carlos Ruiz, and Lucia Graves. The Shadow of the Wind. New York: Penguin Books, 2001.

MLA (8th ed.) Citation

Zafon, Carlos Ruiz, and Lucia Graves. The Shadow of the Wind. Penguin Books, 2001.