TY  - BOOK
ED  - National Research Council (U.S.).
TI  - Motorist aid systems
SN  - 0309019087
AV  - HE5613 .N37
U1  - 388.312 
PY  - 1971///
CY  - [Washington]
KW  - Transportation, Automotive
KW  - Traffic safety
N1  - "Research sponsored by the American Association of State Highway Officials in cooperation with the Federal Highway Administration."; Bibliography: p. 26-27
ER  -