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100   $a20020821d1935----km-y0itay50------ba
101 0 $aeng
105   $aa-------001yy
200 1 $aPrinciples of alternating currents$fRalph R. Lawrence
205   $a2nd ed.
210   $aNew York ; London$cMcGraw-Hill$d1935
215   $a475 p.$cill.$d23 cm
225 1 $aElectrical engineering texts
610 0 $aCorrente elettrica alternata
676   $a621.313'3
700  1$aLawrence,$bRalph Restieaux$f<1873-1962>$025709
801  0$aIT$bUNINA$gRICA$2UNIMARC
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952   $a10 C II 44$b2831$fDINEL
959   $aDINEL
996   $aPrinciples of alternating currents$9335009
997   $aUNINA