000 00407nam a2200169Ia 4500
003 OSt
005 20240308211931.0
008 230106s9999 xx 000 0 und d
040 _cMRSPTU
082 _a620
_bAR-R
100 _aArora,N.L
245 0 _aRailways bridges and tunnels
250 _a11th Ed.
260 _aNew Delhi
_bNew India Publication
_c1992
650 _aCivil Engineering
942 _cBK
_2ddc
999 _c171
_d171