000 00309nam a2200133Ia 4500
005 20260413100443.0
008 230516s9999||||xx |||||||||||||| ||und||
100 _aSingh, Devraj
245 0 _aIntrod. Engg. Physics
260 _bDelhi , Gagan Kapoor
_c2011
300 _a489
942 _cDB
999 _c1320
_d1320