*0011503503
*008851008s1985    xx#           000 0 nob
*019  $bk
*08230$a598.256
*100  $aRøskaft, Eivin$_135890400
*245  $aHvorfor legger gjøken tykkskallete egg?$cEivin Røskaft
*300  $aS. 9-12 : ill.
*773  $tForskningsnytt$gÅrg. 30, nr 3 (1985)$x0015-7945$w(NO-LaBS)158632(tnr)
*999  $z8500071623$anorart:8500071623
^