000 00269nam a22000977a 4500
999 _c16284
_d16284
245 _aIS 4758:1968-Methods of Measurement of Noise Emitted by Machines
260 _aNew Delhi :
_bBureau of Indian Standards (BIS),
_c1968.
300 _a14 p.
650 _aNoise
942 _cST