000 00269nam a2200109Ia 4500
008 220201s1977 xx 000 0 eng d
100 _aARORA N L
245 0 _aRAILWAYS BRIDGES AND TUNNELS
260 _aJALANDHAR
_bINDIAN PUB HOUSE
_c1977
300 _a192
942 _2ddc
999 _c89599
_d89599