*0011596908 *008920717s1992 xx# 000 0 nob *019 $bk *08230$a681.4 *100 $aHelland, Magne$_142539600 *245 $aKongsberg$bet naturlig senter for norsk optometri *300 $aS. 54-56 : ill. *773 $tOptikeren$gnr 3 (1992)$x0333-1598$w(NO-LaBS)915635(tnr) *999 $z9200144794$anorart:9200144794 ^