000 00296nam a2200121Ia 4500
008 230913s9999 xx 000 0 und d
100 _aSaxena, S.C.
245 0 _aTextbook Of Railway Engineering
260 _aNEW DELHI
260 _bDHANPAT RAI
260 _c2018
650 _aCivil Engineering
999 _c120185
_d120185