*0011507993 *008860416s1985 xx# 000 0 nob *019 $bk *08230$a372.7 *100 $aGjone, Gunnar$_115379700 *245 $aLOGO i matematikkundervisningen$cGunnar Gjone *300 $aS. 5-8, 10-12, 14, 28-30 *773 $tSymbol$gÅrg. 10, nr 3 (1985)$x0333-0346$w(NO-LaBS)801321(tnr) *999 $z8600075509$anorart:8600075509 ^