APA (7th ed.) Citation

Gilbert, A. (2014). Challenge of battle: The real story of the British Army in 1914. Osprey.

Chicago Style (17th ed.) Citation

Gilbert, Adrian. Challenge of Battle: The Real Story of the British Army in 1914. Oxford: Osprey, 2014.

MLA (9th ed.) Citation

Gilbert, Adrian. Challenge of Battle: The Real Story of the British Army in 1914. Osprey, 2014.

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