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*019  $bl
*035  $a(EXLNZ-47BIBSYS_NETWORK)999623305074702201
*035  $a(NO-LaBS)14449229(bibid)
*035  $a(NO-TrBIB)962330507
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*040  $aNO-TrBIB$bnob$ekatreg
*1001 $aKendrick, John W.$0(NO-TrBIB)90073600$_80266000
*24510$aProductivity trends in the United States$cby John W. Kendrick, assisted by Maude R. Pech. A study by the National Bureau of Economic Research, New York
*260  $aPrinceton [N.J.]$bPrinceton University Press$c1961
*300  $a630 p.$billus.
*4900 $aNational Bureau of Economic Research. General series, no. 71
*650 0$aLabor productivity$zUnited States$_80266100
*901  $a80
*999  $aoai:nb.bibsys.no:999623305074702202$b2021-11-14T20:50:15Z$z999623305074702202
^