TY  - BOOK
ED  - National Research Council (U.S.).
TI  - Traffic control devices and rail-highway crossings
SN  - 0309038227
AV  - TE7TE228 .H5 no. 1010
U1  - 380.5 s388.3/12�19 
PY  - 1985///
CY  - Washington, D.C.
PB  - Transportation Research Board, National Research Council
KW  - Traffic signs and signals
KW  - Railroads
KW  - Crossings
ER  -