000 00317nam a2200133Ia 4500
005 20260413100526.0
008 230516s9999||||xx |||||||||||||| ||und||
100 _aSatish Chandra
245 0 _aRailway Engineering
260 _bN.Delhi,University press
_c2015
300 _a651
942 _cGB
999 _c1892
_d1892