APA (7th ed.) Citation

(2009). Machine-guns and the Great War (1. publ. in Great Britain.). Pen & Sword Military.

Chicago Style (17th ed.) Citation

Machine-guns and the Great War. 1. publ. in Great Britain. London: Pen & Sword Military, 2009.

MLA (9th ed.) Citation

Machine-guns and the Great War. 1. publ. in Great Britain. Pen & Sword Military, 2009.

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