LEADER 00771nam0-22002891i-450- 001 990003690820403321 005 19930714000000.0 010 $a06-7484-372-X 035 $a000369082 035 $aFED01000369082 035 $a(Aleph)000369082FED01 035 $a000369082 100 $aAug-15,-D----1992km-0yita-0103----ba 101 0 $aENG 102 $aUS 200 1 $aStructural holes$ethe social structure of competition$fRonald S. Burt 210 $aCambridge$dMass. 215 $aVIII, 313 p.$d25 cm 620 $aUS$dCambridge 700 1$aBurt,$bRonald S.$0118943 801 0$aIT$bUNINA$gRICA$2UNIMARC 901 $aBK 912 $a990003690820403321 952 $a1-6-373-TI$b7159$fECA 959 $aECA 996 $aStructural holes$9261655 997 $aUNINA