*0011535910 *008881216s1988 xx# 000 0 nob *019 $bk *08230$a362.293 *100 $aPedersen, Willy$_55011800 *245 $aHasjbruk blant norske skoleelever$cav Willy Pedersen *300 $aS. 36-39 : port. *773 $tSkoleforum$gÅrg. 87, nr 8 (1988)$x0332-7167$w(NO-LaBS)759810(tnr) *999 $z8800102743$anorart:8800102743 ^