APA (7th ed.) Citation

Asbridge, T. S. (2005). The First Crusade: A new history ([new] ed.). Free Press.

Chicago Style (17th ed.) Citation

Asbridge, Thomas S. The First Crusade: A New History. [new] ed. London [u.a.]: Free Press, 2005.

MLA (9th ed.) Citation

Asbridge, Thomas S. The First Crusade: A New History. [new] ed. Free Press, 2005.