APA (7th ed.) Citation

Roberts, A., & Title. (2019). Churchill: Walking with destiny. Penguin Books.

Chicago Style (17th ed.) Citation

Roberts, Andrew, and Title. Churchill: Walking with Destiny. New York: Penguin Books, 2019.

MLA (9th ed.) Citation

Roberts, Andrew, and Title. Churchill: Walking with Destiny. Penguin Books, 2019.