Emergency communications 5 reports prepared for the 51st Annual Meeting.

Détails bibliographiques
Collectivités auteurs:	National Research Council (U.S.). Highway Research Board, National Research Council (U.S.). Highway Research Board. Meeting, National Research Council (U.S.). Committee on Communications and Committee on Motorist Services
Format:	Livre
Langue:	anglais
Publié:	Washington Highway Research Board D.C., 1972.
Collection:	Highway research record no. 402.
Sujets:	Highway communications. Emergency communication systems.