TY  - BOOK
AU  - Gupta, D. L., Supple, O. P. and Sharma, O. P.
TI  - A text book of railways bridges and tunnels
U1  - 624.2 
PY  - 1981///
CY  - Ludhiana
PB  - Katson Publshing House
KW  - Bridge engineering
KW  - Engineering
ER  -