TY  - RPRT
TI  - An evaluation of a range-top warning light system 
AU  - Stefl, Mary E
AU  - Persensky, J J
PY  - 1975
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 75-797
DO  - 10.6028/NBS.IR.75-797
ER  -