TY  - BOOK
AU  - Harrison, H H  .
AU  - Maybury,Henry  .
AU  - Priest,T P  .
TI  - Automatic street traffic signalling / 
U1  - 621.3175 
PY  - 1934///
CY  - London : 
PB  - Sir Isaac Pitman & Sons Ltd , 
ER  -