OFFICE OF THE UNDER SECRETARY OF DEFENSE (COMPTROLLER) / CHIEF FINANCIAL OFFICER. "PROGRAM ACQUISITION COST BY WEAPON SYSTEM"(PDF). UNITED STATES DEPARTMENT OF DEFENSE FISCAL YEAR 2014 BUDGET REQUEST. U.S. Department of Defense. p. 12. Archived from the original(PDF) on 3 September 2013. Retrieved 18 September 2013.
OFFICE OF THE UNDER SECRETARY OF DEFENSE (COMPTROLLER) / CHIEF FINANCIAL OFFICER. "PROGRAM ACQUISITION COST BY WEAPON SYSTEM"(PDF). UNITED STATES DEPARTMENT OF DEFENSE FISCAL YEAR 2014 BUDGET REQUEST. U.S. Department of Defense. p. 12. Archived from the original(PDF) on 3 September 2013. Retrieved 18 September 2013.