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*019  $bl
*035  $a(EXLNZ-47BIBSYS_NETWORK)990209982444702201
*035  $a(NO-LaBS)14414562(bibid)
*035  $a(NO-TrBIB)020998244
*035  $a020998244-47bibsys_network
*040  $aNO-TrBIB$bnob$ekatreg
*24504$aThe supply of quality in child care centers
*260  $aCambridge, Mass.$bNBER$c1999
*300  $a47 s.
*4901 $aNBER working paper series$v7225
*7001 $aBlau, David M.$_31197500
*7001 $aMocan, H. Naci$_35738800
*7102 $aNational Bureau of Economic Research (Forente Stater)$_13074800
*830 0$aWorking paper series (National Bureau of Economic Research : trykt utg.)$x0898-2937$v7225$w999105437124702201$_13074900
*901  $a60
*999  $aoai:nb.bibsys.no:990209982444702202$b2021-11-14T20:21:59Z$z990209982444702202
^