TY  - GEN
AU  - Collins, Belinda L
AU  - Goodin, Peter J
C2  - , National Institute of Standards and Technology, Gaithersburg, MD
DA  - 1991-01-01 05:01:00
DO  - https://doi.org/10.6028/NIST.IR.4532
LA  - en
PB  - , National Institute of Standards and Technology, Gaithersburg, MD
PY  - 1991
TI  - Visibility of exit directional indicators:
ER  -