APA (7th ed.) Citation

Cornwell, B. (1997). Enemy of god. Penquin Books.

Chicago Style (17th ed.) Citation

Cornwell, Bernard. Enemy of God. USA: Penquin Books, 1997.

MLA (9th ed.) Citation

Cornwell, Bernard. Enemy of God. Penquin Books, 1997.

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