Communications and emergency services 6 reports.

Communications and emergency services 6 reports.

书目详细资料
企业作者: National Research Council (U.S.). Highway Research Board. Committee on Communications, National Research Council (U.S.). Highway Research Board. Committee on Motorist Services
格式: 图书
语言:English
出版: Washington, D.C. Highway Research Board, National Research Council c1971.
丛编:Highway research record no. 358.
主题:
Transportation > Congresses.
Emergency communication systems > Congresses.