000			00310nam a2200121Ia 4500
020			_a817263160X
082			_bIGN
245			_aOscillation and waves (PHE-02) : oscillation -1 _cIGNOU
260			_aNew Delhi _bI.G.N.O.U _c2
300			_a106p.
650			_aElectrical & Electronics Engineering
650			_aPhysics
999			_c7536 _d7536