*0011680073
*008961024s1980    xx#           000 0 nob
*019  $bk
*08230$a920
*100  $aNielsen, Ruth Frøyland$_65943500
*245  $aProfessor Jean Piaget (1896-1980) in gratam memoriam
*300  $aS.577-579
*600  $aPiaget, Jean$_47318400
*773  $tTidsskrift for Norsk psykologforening$gVol.17, nr.12 (1980)$x0332-6470$w(NO-LaBS)926809(tnr)
*999  $z9600034388$anorart:9600034388
^