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*019  $bl
*035  $a(EXLNZ-47BIBSYS_NETWORK)990210285914702201
*035  $a(NO-LaBS)13820247(bibid)
*035  $a(NO-TrBIB)021028591
*035  $a021028591-47bibsys_network
*040  $aNO-TrBIB$bnob$ekatreg
*24504$aThe impacts of environmental regulations on industrial activity :$bevidence from the 1970 and 1977 clean air act amendments and the census of manufactures
*260  $aCambridge, Mass.$bNBER$c2001
*300  $a33, [15] s.
*4901 $aNBER working paper series$v8484
*7001 $aGreenstone, Michael$_80711000
*7102 $aNational Bureau of Economic Research (Forente Stater)$_13074800
*830 0$aWorking paper series (National Bureau of Economic Research : trykt utg.)$x0898-2937$v8484$w999105437124702201$_13074900
*901  $a60
*999  $aoai:nb.bibsys.no:990210285914702202$b2021-11-14T20:27:17Z$z990210285914702202
^