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*080  $a159.922.72Piaget
*1001 $aPhillips, John L.$0(NO-TrBIB)90092032$_32654000
*24510$aPiaget's theory :$ba primer$cJohn L. Phillips, Jr.
*260  $aSan Francisco$bFreeman$cc1981
*300  $axiii,192 s.$bill.
*4900 $aA Series of books in psychology
*901  $a80
*999  $aoai:nb.bibsys.no:998131408114702202$b2021-11-14T19:49:37Z$z998131408114702202
^