APA (7th ed.) Citation

(2003). English Civil War fortifications 1642-51 (1. publ.). Osprey.

Chicago Style (17th ed.) Citation

English Civil War Fortifications 1642-51. 1. publ. Oxford: Osprey, 2003.

MLA (9th ed.) Citation

English Civil War Fortifications 1642-51. 1. publ. Osprey, 2003.

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