Tham khảo Bộ_Chiến_tranh_Hoa_Kỳ

  1. ↑ Davidson, Dr. James West and Stoff, Michael B (2007). America History of our Nation. Prentice Hall. tr. 283. 
  2. ↑ Goldberg, Alfred (1992). The Pentagon: The First Fifty Years. Office of Secretary of Defense / Government Printing Office. tr. 4–9. 
  3. ↑ “Intro - Secretaries of War and Secretaries of the Army”. Center of Military History, United States Army. 1992. Truy cập ngày 17 tháng 10 năm 2008. 
  4. ↑ Vogel, Steve (2007). The Pentagon - A History: The Untold Story of the Wartime Race to Build the Pentagon and to Restore it Sixty Years Later. Random House. tr. 29–33. 
  5. ↑ Goldberg, Alfred (1992). The Pentagon: The First Fifty Years. Office of Secretary of Defense / Government Printing Office. tr. 22. 
  6. ↑