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*019  $bl
*035  $a(EXLNZ-47BIBSYS_NETWORK)990209772804702201
*035  $a(NO-LaBS)14291123(bibid)
*035  $a(NO-TrBIB)02097728x
*035  $a02097728x-47bibsys_network
*040  $aNO-TrBIB$bnob$ekatreg
*24500$aSchooling quality in a cross section of countries
*260  $aCambridge, Mass.$bNBER$c1997
*300  $a33,[9] s.
*4901 $aNBER working paper series$v6198
*7001 $aBarro, Robert J.$_27718100
*7001 $aLee, Jong-Wha$_38144000
*7102 $aNational Bureau of Economic Research (Forente Stater)$_13074800
*830 0$aWorking paper series (National Bureau of Economic Research : trykt utg.)$x0898-2937$v6198$w999105437124702201$_13074900
*901  $a60
*999  $aoai:nb.bibsys.no:990209772804702202$b2021-11-14T20:52:24Z$z990209772804702202
^