APA (7th ed.) Citation

Marwood, A. (2016). The darkest secret: A novel. Penguin Books.

Chicago Style (17th ed.) Citation

Marwood, Alex. The Darkest Secret: A Novel. New York: Penguin Books, 2016.

MLA (8th ed.) Citation

Marwood, Alex. The Darkest Secret: A Novel. Penguin Books, 2016.

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