000 00344nam a2200145Ia 4500
008 180112s9999||||xx |||||||||||||| ||und||
020 _a9788189928834
082 _a624.193
100 _aSAXENA S.C
245 0 _aTUNNEL ENGINEERING
250 _aFourth
260 _aNEW DELHI
_bDHANAPAT RAI & SONS-1
_c1980
300 _a351
650 _aTunnal Engg
942 _cGEN_BK
999 _c1928
_d1928