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200 1 $aProceedings of the 19th PME conference of the International group for the psychology of mathematics education, Recife, Brazil, July 22-27, 1995$fLuciano Meira, David Carraher, editors
210   $aPernambuco$cUniversitade Federalde Pernambuco$d1995
215   $a2 v.$d21
225 1 $aPsycology of mathematics education$v19
610 0 $aEducazione matematica
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702  1$aMeira,$bLuciano
702  1$aCarraher,$bDavid
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996   $aProceedings of the 19th PME conference of the International group for the psychology of mathematics education, Recife, Brazil, July 22-27, 1995$9770455
997   $aUNINA