APA (7th ed.) Citation

Boas, A. J. (2016). The crusader world. Routledge.

Chicago Style (17th ed.) Citation

Boas, Adrian J. The Crusader World. London: Routledge, 2016.

MLA (9th ed.) Citation

Boas, Adrian J. The Crusader World. Routledge, 2016.

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