*0011579700
*008910301s1990    xx#           000 0 nob
*019  $bk
*08230$a331.13
*100  $aBerg, Jon Knut$_166648500
*245  $aØkologi for arbeid$cav Jon Knut Berg
*300  $aS. 4-5 : ill.
*773  $tFolkevett$gÅrg. 12, nr 7 (1990)$x0332-8651$w(NO-LaBS)569859(tnr)
*999  $z9100127549$anorart:9100127549
^