APA (7th ed.) Zitazioa

Strand, M. (2012). Hopper (3a. ed.). Penguin Random House.

Chicago Style (17th ed.) Zitazioa

Strand, Mark. Hopper. 3a. ed. Barcelona: Penguin Random House, 2012.

MLA (9th ed.) Zitazioa

Strand, Mark. Hopper. 3a. ed. Penguin Random House, 2012.