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*035  $a(NO-LaBS)15224827(bibid)
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*24500$aChild care in poor communities :$bearly learning effects of type, quality, and stability$cSusanna Loeb ... [et al.]
*260  $aCambridge, Mass.$bNational Bureau of Economic Research$c2003
*300  $a34 s.$btab.
*4901 $aWorking paper series / National Bureau of Economic Research$v9954
*7001 $aLoeb, Susanna$0(NO-TrBIB)3098933$_97315900
*830 0$aWorking paper series (National Bureau of Economic Research : trykt utg.)$x0898-2937$v9954$w999105437124702201$_13074900
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