000 00302nam a2200121Ia 4500
008 191201s2015 xx 000 0 und d
100 _aSAXENA, Subhash C
245 0 _aTunnel Engineering
260 _aN. Delhi
_bDhanpat Rai Pub (P) Ltd
_c2015
300 _a210
650 _aB.Tech(CE)
942 _2ddc
_cBK
999 _c6171
_d6171