TY  - BOOK
ED  - United States.
ED  - National Institute of Law Enforcement and Criminal Justice
TI  - Emergency vehicle warning lights: state of the art 
U1  - 629.2293 
PY  - 1978///
CY  - Washington, D. C.
PB  - U. S. Dept. of Commerce
KW  - Emergency vehicles
KW  - Lighting
ER  -