APA (7th ed.) Citation

Nicolle, D., & Hook, C. (2005). Acre 1291: Bloody sunset of the Crusader states. Osprey.

Chicago Style (17th ed.) Citation

Nicolle, David, and Christa Hook. Acre 1291: Bloody Sunset of the Crusader States. London: Osprey, 2005.

MLA (9th ed.) Citation

Nicolle, David, and Christa Hook. Acre 1291: Bloody Sunset of the Crusader States. Osprey, 2005.

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