APA (7th ed.) Citation

Phillips, J. (2007). The Second Crusade: Extending the frontiers of Christendom. Yale Univ. Press.

Chicago Style (17th ed.) Citation

Phillips, Jonathan. The Second Crusade: Extending the Frontiers of Christendom. New Haven, Conn. [u.a.]: Yale Univ. Press, 2007.

MLA (8th ed.) Citation

Phillips, Jonathan. The Second Crusade: Extending the Frontiers of Christendom. Yale Univ. Press, 2007.