APA (7th ed.) Citation

Kelly, E. E. (2017). Hello, universe (First edition.). Greenwillow Books, an imprint of HarperCollinsPublishers.

Chicago Style (17th ed.) Citation

Kelly, Erin Entrada. Hello, Universe. First edition. New York, NY: Greenwillow Books, an imprint of HarperCollinsPublishers, 2017.

MLA (8th ed.) Citation

Kelly, Erin Entrada. Hello, Universe. First edition. Greenwillow Books, an imprint of HarperCollinsPublishers, 2017.

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