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*019  $bl
*035  $a(EXLNZ-47BIBSYS_NETWORK)990209925054702201
*035  $a(NO-LaBS)13950235(bibid)
*035  $a(NO-TrBIB)020992505
*035  $a020992505-47bibsys_network
*040  $aNO-TrBIB$bnob$ekatreg
*24500$aDo higher cigarette prices encourage youth to use marijuana?$cFrank J. Chaloupka...[et al.]
*260  $aCambridge, Mass.$bNBER$c1999
*300  $a26 s.
*4901 $aNBER working paper series$v6939
*7001 $aChaloupka, Frank J.$_26133100
*7102 $aNational Bureau of Economic Research (Forente Stater)$_13074800
*830 0$aWorking paper series (National Bureau of Economic Research : trykt utg.)$x0898-2937$v6939$w999105437124702201$_13074900
*901  $a60
*999  $aoai:nb.bibsys.no:990209925054702202$b2021-11-14T19:50:50Z$z990209925054702202
^