TY  - RPRT
TI  - Costbenefit analysis of automated transit information systems 
AU  - Shier, Douglas R
AU  - Gilsinn, Judith F
PY  - 1977
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 77-1253
DO  - 10.6028/NBS.IR.77-1253
ER  -