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

Номзүйн дэлгэрэнгүй
Байгууллагын зохиогчид:	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
Формат:	Ном
Хэл сонгох:	англи
Хэвлэсэн:	Washington Highway Research Board D.C., 1972.
Цуврал:	Highway research record no. 402.
Нөхцлүүд:	Highway communications. Emergency communication systems.