*0011713837 *008980120s1997 xx# 000 0 nob *019 $bk *08230$a631.5 *100 $aJoa, Erik$_170128400 *245 $aPlogen ved et vendepunkt$bjordbearbeiding *300 $aS. 18-19 : ill. *773 $tSamvirke$gÅrg. 92, nr 4 (1997)$x0801-3098$w(NO-LaBS)247553(tnr) *999 $z9800228983$anorart:9800228983 ^