LEADER 00711nam0 2200229   450 
001 000021845
005 20090120133835.0
100   $a20090120d1968----km-y0itay50------ba
101 0 $aeng
102   $aUS
105   $ay-------001yy
200 1 $a<<The >>economics of technological change$fEdwin Mansfield
210   $aNew York$cW. W. Norton$dc1968
215   $aX, 257 p.$d24 cm
500 10$a<<The >>economics of technological change$946786
610 1 $aCambiamento tecnologico
700  1$aMansfield,$bEdwin$01288
801  0$aIT$bUNIPARTHENOPE$c20090120$gRICA$2UNIMARC
912   $a000021845
951   $a640/2$b3280$cNAVA2$d2009
996   $aEconomics of technological change$946786
997   $aUNIPARTHENOPE