APA (7th ed.) Citation

Molin, K. (2001). Unknown crusader castles. Hambledon and London.

Chicago Style (17th ed.) Citation

Molin, Kristian. Unknown Crusader Castles. New York ; London: Hambledon and London, 2001.

MLA (9th ed.) Citation

Molin, Kristian. Unknown Crusader Castles. Hambledon and London, 2001.