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*1001 $aHatton, Timothy J.$0(NO-TrBIB)98040777$_72294900
*24510$aWhat fundamentals drive world migration?$cTimothy J. Hatton, Jeffrey G. Williamson
*260  $aCambridge, Mass.$bNational Bureau of Economic Research$c2002
*300  $a34 s.$bill.
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*7001 $aWilliamson, Jeffrey G.$0(NO-TrBIB)90073233$_24958600
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