Stanley, B. E. (2015). Outsourcing security: Private military contractors and U.S. foreign policy. Potomac Books, an imprint of the University of Nebraska Press.

Stanley, Bruce E. Outsourcing Security: Private Military Contractors and U.S. Foreign Policy. Lincoln, NB: Potomac Books, an imprint of the University of Nebraska Press, 2015.

Stanley, Bruce E. Outsourcing Security: Private Military Contractors and U.S. Foreign Policy. Potomac Books, an imprint of the University of Nebraska Press, 2015.