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*035  $a(EXLNZ-47BIBSYS_NETWORK)990212316054702201
*035  $a(NO-LaBS)14140806(bibid)
*035  $a(NO-TrBIB)021231605
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*1001 $aOlmstead, Alan L.$0(NO-TrBIB)2049333$_30470000
*24510$aThe Red Queen and the Hard Reds :$bproductivity growth in American wheat, 1800-1940$cAlan L. Olmstead, Paul W. Rhode
*260  $aCambridge, Mass.$bNational Bureau of Economic Research$c2002
*300  $a42, [6] s.
*4901 $aWorking paper series / National Bureau of Economic Research$v8863
*7001 $aRhode, Paul W.$0(NO-TrBIB)2049313$_30470100
*830 0$aWorking paper series (National Bureau of Economic Research : trykt utg.)$x0898-2937$v8863$w999105437124702201$_13074900
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*999  $aoai:nb.bibsys.no:990212316054702202$b2021-11-14T20:31:34Z$z990212316054702202
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