National coverage for emergency mayday systems /

Bibliographic Details

Main Author:	Richardson, David
Corporate Authors:	Northrop Grumman Corporation, National Research Council (U.S.). Transportation Research Board, ITS-IDEA Program (U.S.)
Format:	Book
Language:	English
Published:	Washington, D.C : National Research Council, Transportation Research Board, [1997]
Series:	Report of investigation (ITS-IDEA Program (U.S.))
Subjects:	Emergency communication systems. Shortwave radio. motorist aid systems.