APA (7th ed.) Citation

Roberts. (2009). The art of war: Great commanders of the modern world. Quercus.

Chicago Style (17th ed.) Citation

Roberts. The Art of War: Great Commanders of the Modern World. London: Quercus, 2009.

MLA (8th ed.) Citation

Roberts. The Art of War: Great Commanders of the Modern World. Quercus, 2009.

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