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100   $a20130910d1980----km-y0itay50------ba
101 0 $aita
102   $aIT
200 1 $aProgresso tecnologico e dimensioni d'impresa$fEdwin Mansfield e Frederic M. Scherer
210   $aMilano$cFrancoAngeli$d1980
215   $a188 p.$d22 cm
225 1 $aCollana di studi I.R.E.A.$fIstituto per le ricerche di economia applicata$v1
610 0 $aImprese$aDimensione
610 0 $aInnovazioni tecnologiche
700  1$aMansfield,$bEdwin$f<1930- >$01288
701  1$aScherer,$bFrederic M.$0114114
801  0$aIT$bUNINA$gRICA$2UNIMARC
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996   $aProgresso tecnologico e dimensioni d'impresa$9425388
997   $aUNINA