000 00256nam a2200109Ia 4500
008 250604s9999 xx 000 0 und d
100 _aSatya Prakash
245 0 _aOscillations and waves
260 _bPragati
_aMeerut
_c2017
300 _a532
942 _cBK
999 _c18230
_d18230