000			00354nam a2200145Ia 4500
008			220926s9999 xx 000 0 und d
100			_aS.N. Sen
245		0	_aAecustics: Waves and Osillations
250			_a1st Ed
260			_aNew Delhi
260			_bWiley Eastern Ltd
260			_c1990
650			_aAecustics: Waves and Osillations
942			_cBK
999			_c16400 _d16400