000 00325nam a2200145Ia 4500
008 220421s9999||||xx |||||||||||||| ||und||
020 _c425
040 _aET
100 _aSubruhmanyam N.
245 0 _aWaves and Oscillations
260 _bVikas Publications
_aNEW DELHI
300 _a432
500 _a55190
942 _cBK
999 _c61203
_d61203