APA (7th ed.) Citation

Urban, W. L., & Urban, W. (2003). The Teutonic Knights: A military history (1. publ.). Greenhill.

Chicago Style (17th ed.) Citation

Urban, William L., and William Urban. The Teutonic Knights: A Military History. 1. publ. London [u.a.]: Greenhill, 2003.

MLA (8th ed.) Citation

Urban, William L., and William Urban. The Teutonic Knights: A Military History. 1. publ. Greenhill, 2003.

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