APA (7th ed.) Citation

Frankopan, P. (2012). The First Crusade: The call from the east (1. publ. in Great Britain.). Bodley Head.

Chicago Style (17th ed.) Citation

Frankopan, Peter. The First Crusade: The Call from the East. 1. publ. in Great Britain. London: Bodley Head, 2012.

MLA (9th ed.) Citation

Frankopan, Peter. The First Crusade: The Call from the East. 1. publ. in Great Britain. Bodley Head, 2012.