000 00218nam a2200073 4500
080 _a
_b
245 _aIEC: 34-9-1990; Rotating electrical machines Part-9 Noise limits
100 _aINTERNATIONAL ELECTROTECHNICAL INSTITUTE
260 _aGeneva
_bIEC
_c1990
300 _a19p
999 _c35002
_d35002