APA (7th ed.) Citation

Operation Enduring Freedom Study Group, Degen, E. J., & Reardon, M. J. (2021). Modern war in an ancient land: The United States Army in Afghanistan, 2001-2014. Center of Military History, United States Army.

Chicago Style (17th ed.) Citation

Operation Enduring Freedom Study Group, E. J. Degen, and Mark J. Reardon. Modern War in an Ancient Land: The United States Army in Afghanistan, 2001-2014. Washington, D.C.: Center of Military History, United States Army, 2021.

MLA (9th ed.) Citation

Operation Enduring Freedom Study Group, et al. Modern War in an Ancient Land: The United States Army in Afghanistan, 2001-2014. Center of Military History, United States Army, 2021.