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*019  $bl
*035  $a(EXLNZ-47BIBSYS_NETWORK)990209465624702201
*035  $a(NO-LaBS)13444176(bibid)
*035  $a(NO-TrBIB)020946562
*035  $a020946562-47bibsys_network
*040  $aNO-TrBIB$bnob$ekatreg
*24500$aUnderstanding the 20th century growth in U.S. school spending
*260  $aCambridge, Mass.$bNBER$c1996
*300  $a40,[3] s.
*4901 $aNBER working paper series$v5547
*7001 $aHanushek, Eric A$_31814300
*7001 $aRivkin, Steven G$_31814400
*7102 $aNational Bureau of Economic Research (Forente Stater)$_13074800
*830 0$aWorking paper series (National Bureau of Economic Research : trykt utg.)$x0898-2937$v5547$w999105437124702201$_13074900
*901  $a60
*999  $aoai:nb.bibsys.no:990209465624702202$b2021-11-14T21:12:33Z$z990209465624702202
^