000 00250nam a2200121Ia 4500
100 _aGAUR, R.K.
110 _aGUPTA, S.L.
245 _aENGINEERING PHYSICS
250 _a7
260 _bDHANPAT RAI & SONS
_c1992
300 _a1020
942 _2ddc
_cBB
999 _c73287
_d73287