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*035  $a(EXLNZ-47BIBSYS_NETWORK)990209357224702201
*035  $a(NO-LaBS)14639165(bibid)
*035  $a(NO-TrBIB)020935722
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*040  $aNO-TrBIB$bnob$ekatreg
*24504$aThe impact of immigration on American labor markets prior to the quotas$cTimothy J. Hatton, Jeffrey G. Williamson
*260  $aCambridge, Mass.$bNBER$c1995
*300  $a59 s.
*4901 $aNBER working paper series$vno. 5185
*7001 $aHatton, Timothy J$_66613100
*7001 $aWilliamson, Jeffrey G.$_20675100
*7102 $aNational Bureau of Economic Research (Forente Stater)$_13074800
*830 0$aWorking paper series (National Bureau of Economic Research : trykt utg.)$x0898-2937$vno. 5185$w999105437124702201$_13074900
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*999  $aoai:nb.bibsys.no:990209357224702202$b2021-11-14T20:27:38Z$z990209357224702202
^