TY  - BOOK
AU  - Sharma O.P.
AU  - Gupta D.L.
AU  - Supple O.P.
TI  - Railways Bridge Tunnels
SN  - 0000008189
U1  - 629.04 
PY  - 1978///
CY  - Ludhiana
PB  - Katson Publishing, Ludhiana
KW  - Electronics & Communication EngineeringBridge  Railways  Tunnels
ER  -