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100   $a20000920d1993----km-y0itay50------ba
101 0 $aita
102   $aIT
200 1 $a<<The >>Economics of Technical Change$fEdited by Edwin Mansfield and Elisabeth Mansfiled.
210   $aAldershot$cEdward Elgar$d1993.
215   $aXX, 489 p.$d24 cm
225 1 $a<<The >>international library of critical writings in economics$v31
610 0 $aBrevetti
610 0 $aInnovazioni tecnologiche$aAspetti economici
676   $aG/1.4
702  1$aMansfield,$bEdwin$f<1930- >
702  1$aMansfield,$bElisabeth
801  0$aIT$bUNINA$gRICA$2UNIMARC
901   $aBK
912   $a990003063530403321
952   $aG/1.4 MAN/93$b13975$fSES
959   $aSES
996   $aEconomics of Technical Change$9465397
997   $aUNINA
DB    $aING01