APA (7th ed.) Citation

Kirchubel, Gerrard, & Dennis. (2005). Operation barbarossa 1941(2): Army group north. Osprey Publishing.

Chicago Style (17th ed.) Citation

Kirchubel, Gerrard, and Dennis. Operation Barbarossa 1941(2): Army Group North. New York: Osprey Publishing, 2005.

MLA (8th ed.) Citation

Kirchubel, et al. Operation Barbarossa 1941(2): Army Group North. Osprey Publishing, 2005.