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100   $a20030910d1971----km-y0itay50------ba
101 0 $aeng
200 1 $a<<The >>economics of technological change$eselected readings$fedited by Nathan Rosenberg
210   $aHarmondsworth$cPenguin Books$d1971
215   $a509 p.$d18 cm
702  1$aRosenberg,$bNathan$f<1927- >
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959   $aDECTS
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996   $aEconomics of Technological Change$9465404
997   $aUNINA