APA (7th ed.) Citation

Zusak, M. (2015). I am the messenger. Penguin Random House.

Chicago Style (17th ed.) Citation

Zusak, Markus. I Am the Messenger. UK: Penguin Random House, 2015.

MLA (9th ed.) Citation

Zusak, Markus. I Am the Messenger. Penguin Random House, 2015.