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200 1 $aFOUNDATIONS of future electronics$fedited by D. B. Langmuir and W. D. Hershberger.
210   $aNew York$cMcGraw-Hill book company$d1961
215   $aIX, 514 p.$cill.$d24 cm
676   $a621.381
702  1$aHershberger,$bWilliam Delmar
702  1$aLangmuir,$bDavid B.
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