বিষয়গুলি: “...United States. Air Force Procurement Periodicals....”
Full text available from Advanced Technologies & Aerospace Database: 01/01/1999 to 07/31/2011
Full text available from Military Database: 01/01/1999 to 07/31/2011
Full text available from Research Library: 01/01/1999 to 07/31/2011

বিষয়গুলি: “...United States. Air Force Procurement Periodicals....”
Full text available from ABI/INFORM Trade & Industry: 01/08/2010 to present
Full text available from Advanced Technologies & Aerospace Database: 01/08/2010 to present
Full text available from Military Database: 01/08/2010 to present