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*019  $bl
*035  $a(EXLNZ-47BIBSYS_NETWORK)999110843804702201
*035  $a(NO-LaBS)14483290(bibid)
*035  $a(NO-TrBIB)91108438x
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*040  $aNO-OsNB$bnob$ekatreg
*1001 $aHeady, Earl O.$0(NO-TrBIB)90544755$_37251500
*24510$aEconomics of agricultural production and resource use$cEarl O. Heady
*260  $aNew York$bPrentice-Hall$c1952
*300  $aviii, 850 s.$bfig.
*901  $a80
*999  $aoai:nb.bibsys.no:999110843804702202$b2021-11-14T19:54:35Z$z999110843804702202
^