APA (7th ed.) Citation

Westerfeld, S. (2004). So yesterday: A novel. Razorbill.

Chicago Style (17th ed.) Citation

Westerfeld, Scott. So Yesterday: A Novel. New York: Razorbill, 2004.

MLA (9th ed.) Citation

Westerfeld, Scott. So Yesterday: A Novel. Razorbill, 2004.

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