APA (7th ed.) Citation

Penman, S. K. (2005). Prince of darkness: A medieval mystery. G.P. Putnam's Sons.

Chicago Style (17th ed.) Citation

Penman, Sharon Kay. Prince of Darkness: A Medieval Mystery. New York: G.P. Putnam's Sons, 2005.

MLA (8th ed.) Citation

Penman, Sharon Kay. Prince of Darkness: A Medieval Mystery. G.P. Putnam's Sons, 2005.

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