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*1001 $aLumsdaine, Arthur A.$0(NO-TrBIB)90523195$_29800500
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*260  $a<Washington>$bDept. of Audio-Visual Instruction, National Education Association$c1960
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*490  $aTeaching machines and programmed learning
*650 0$aProgrammed instruction$_13424200
*650 0$aTeaching machines$_29800600
*653  $aselvinstruksjon$aprogrammert$aundervisning$alæring$alæremaskiner$aegenlæring$_29800700
*7001 $aGlaser, Robert$0(NO-TrBIB)90155172$_15307600
*800  $aLumsdaine, Arthur A.$tTeaching machines and programmed learning$_171762300
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