APA (7th ed.) Citation

Killeen, M. (2018). Orphan monster spy. Viking, an imprint of Penguin Random House LLC.

Chicago Style (17th ed.) Citation

Killeen, Matt. Orphan Monster Spy. New York, New York: Viking, an imprint of Penguin Random House LLC, 2018.

MLA (9th ed.) Citation

Killeen, Matt. Orphan Monster Spy. Viking, an imprint of Penguin Random House LLC, 2018.

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