“...PB (United States. Army)...”
Full text available from Advanced Technologies & Aerospace Database: 11/01/1996 to 11/30/2003
Full text available from Military Database: 11/01/1996 to 11/30/2003
Full text available from Research Library: 11/01/1996 to 11/30/2003
Full text available from Research Library: 01/01/2004 to 03/31/2007