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*019  $bl
*035  $a(EXLNZ-47BIBSYS_NETWORK)990510912594702201
*035  $a(NO-LaBS)15228864(bibid)
*035  $a(NO-TrBIB)051091259
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*040  $aNO-TrBIB$bnob$ekatreg
*24500$aMeasuring the impact of crack cocaine$cRoland G. Fryer, Jr. ... [et al.]
*260  $aCambridge, Mass.$bNational Bureau of Economic Research$c2005
*300  $a65 s.$bfig.
*4901 $aWorking paper series / National Bureau of Economic Research$v11318
*7001 $aFryer, Roland G., Jr.$0(NO-TrBIB)4009511$_48555100
*830 0$aWorking paper series (National Bureau of Economic Research : trykt utg.)$x0898-2937$v11318$w999105437124702201$_13074900
*901  $a80
*999  $aoai:nb.bibsys.no:990510912594702202$b2021-11-14T20:24:07Z$z990510912594702202
^