TY  - GEN
AU  - Howett, Gerald L
C2  - , National Institute of Standards and Technology, Gaithersburg, MD
DA  - 1979-01-01 05:01:00
DO  - https://doi.org/10.6028/NBS.SP.480-36
LA  - en
PB  - , National Institute of Standards and Technology, Gaithersburg, MD
PY  - 1979
TI  - Some psycho-physical tests of the conspicuities of emergency vehicle warning lights:
ER  -