APA (7th ed.) Citation

O'Brien, D. (2009). In the heat of battle: A history of those who rose to the occasion and those who didn't. Osprey.

Chicago Style (17th ed.) Citation

O'Brien, Donough. In the Heat of Battle: A History of Those Who Rose to the Occasion and Those Who Didn't. Oxford, U.K. ; New York: Osprey, 2009.

MLA (8th ed.) Citation

O'Brien, Donough. In the Heat of Battle: A History of Those Who Rose to the Occasion and Those Who Didn't. Osprey, 2009.

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