APA (7th ed.) Citation

Higson, C. (2018). The enemy series. Penguin Books.

Chicago Style (17th ed.) Citation

Higson, Charlie. The Enemy Series. London: Penguin Books, 2018.

MLA (9th ed.) Citation

Higson, Charlie. The Enemy Series. Penguin Books, 2018.

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