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200 1 $aElectronic switching, timing, and pulse circuits$fJoseph M. Pettit
210   $aNew York$cMcGraw-Hill$d1959
215   $a267 p.$cill.$d23 cm
225 1 $aMcGraw-Hill electrical and electronic engineering series
610 0 $aCircuiti elettronici
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700  1$aPettit,$bJoseph M.$01596
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