Citazione Stile APA (7a Edizione)

Ruiz Zafón, C., & Graves, L. (2004). The shadow of the wind. Penguin Books.

Citazione stile Chigago Style (17a edizione)

Ruiz Zafón, Carlos, e Lucia Graves. The Shadow of the Wind. New York: Penguin Books, 2004.

Citatione MLA (9a ed.)

Ruiz Zafón, Carlos, e Lucia Graves. The Shadow of the Wind. Penguin Books, 2004.