000 00290nam a2200121Ia 4500
008 220201s2016 xx 000 0 eng d
100 _aUPADHYAY A K
245 0 _aRAILWAYS BRIDGES AND TUNNELS
250 _a2
260 _aDELHI
_bS K KATARIA AND SONS
_c2016
300 _a272
942 _2ddc
999 _c93623
_d93623