APA (7th ed.) Citation

Kline, S., & Wummer, A. (2016). Horrible Harry and the birthday girl. Viking, an imprint of Penguin Random House LLC.

Chicago Style (17th ed.) Citation

Kline, Suzy, and Amy Wummer. Horrible Harry and the Birthday Girl. New York, NY: Viking, an imprint of Penguin Random House LLC, 2016.

MLA (8th ed.) Citation

Kline, Suzy, and Amy Wummer. Horrible Harry and the Birthday Girl. Viking, an imprint of Penguin Random House LLC, 2016.

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