TY  - BOOK
AU  - Howett,Gerald Leonard
ED  - Law Enforcement Standards Laboratory
ED  - National Institute of Law Enforcement and Criminal Justice
TI  - Some psychophysical tests of the conspicuities of emergency vehicle warning lights
U1  -  629.2293 
PY  - 1979///
CY  - Washington
PB  - United States Government Printing Office
KW  - Emergency vehicles
KW  - Lighting
ER  -