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100   $a20020821d1954----km-y0itay50------ba
101 0 $aeng
105   $aa-------001yy
200 1 $aMagnetic-amplifier Circuits$ebasic principles characterictics and applications$fWilliam A. Geyger
210   $aLondon [etc.]$cMcGraw-Hill$d1954
215   $a277 p.$cill.$d24 cm
610 0 $aAmplificatori magnetici
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700  1$aGeyger,$bWillian A.$0339588
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996   $aMagnetic-amplifier Circuits$9334207
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