GAO (Government Accountability Office). 2008a, Defense Acquisitions: DoD’s Increased Reliance on Service Contractors Exacerbates Long-standing Challenges. GAO-08-621T. January 23, 2008. Washington, D.C.: U.S. Government Printing Office. Available online at http://www.gao.gov/products/GAO-08-621T.
GAO. 2008b. Defense Acquisitions: Assessments of Selected Weapon Programs. GAO-08-467SP. March 31, 2008. Washington, D.C.: U.S. Government Printing Office. Available online at http://www.gao.gov/products/GAO-08-467SP.
Harvey, J.C. 2007. Memorandum for Superintendent, United States Naval Academy (USNA); Commander, Naval Education Training Command (NETC), from Vice Admiral John C. Harvey, Jr. Subject: Academic Major Policy for Scholarship Midshipmen.
U.S. Air Force (USAF). 1997. Air Force Instruction 11-412, 1 August 1997, Flying Operations, Aircrew Management. Washington, DC: Department of the Air Force. 26 pp.
USAF. 2004. Air Force Doctrine Document 1-1, Leadership and Force Development. February 18, 2004. Headquarters Air Force Doctrine Center.
USAF. 2008. Air Force Policy Directive 36-26, August 27, 2008, Personnel Total Force Development. Washington, DC: Department of the Air Force.
USAF. 2009. Air Force Instruction 11-402, 25 September 2007, Incorporating Change 1, 10 July 2009, Flying Operations, Aviation and Parachutist Service, Aeronautical Ratings and Badges. Washington, DC: Department of the Air Force. 178 pp.