No date.
US Government, ’39– Request for Information (RFI) from Industry for a Submarine Launched Intermediate Range Ballistic Missiles, Pages 2-4 of 4.’
US Government, Federal Business Opportunities, Department of The Navy, ’39– Request for Information (RFI) from Industry for a Submarine Launched Intermediate Range Ballistic Missile (SLIRBM) Launcher Subsystem (SLS).’
24 March 2005.