APA (7th ed.) Citation

Hartmann, C. (2013). Operation Barbarossa: Nazi Germany's war in the east, 1941 - 1945. Oxford University Press.

Chicago Style (17th ed.) Citation

Hartmann, Christian. Operation Barbarossa: Nazi Germany's War in the East, 1941 - 1945. Oxford: Oxford University Press, 2013.

MLA (8th ed.) Citation

Hartmann, Christian. Operation Barbarossa: Nazi Germany's War in the East, 1941 - 1945. Oxford University Press, 2013.

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