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100   $a20020821d1933----km-y0itay50------ba
101 0 $aeng
105   $ay-------001yy
200 1 $a<<The >>world of sound$esix lectures delivered at the Royal Institution$fWilliam Bragg
210   $aLondon$cG. Bell and sons$d1933
215   $a196 p.$cill.$d19 cm
225 1 $aBell's popular science series
610 0 $aSuono
676   $a534
700  1$aBragg,$bWilliam Henry$c<sir ;$f1862-1942>
801  0$aIT$bUNINA$gRICA$2UNIMARC
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