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005 20090527163612.0
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100   $a20090527d1983----km-y0itay50------ba
101 0 $aeng
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105   $aa---a---001yy
200 1 $aAcquisition of mathematics concepts and processes$fedited by Richard Lesh, Marsha Landau
210   $aOrlando, Florida$cAcademic Press, Inc.$dc1983
215   $aXII, 409 p.$d23 cm
225 1 $aDevelopmental Psychology series
610 0 $aInsegnamento della matematica
610 0 $aAspetti psicologici
610 0 $aCognizione nei bambini
676   $a372.7$v21
702  1$aLesh,$bRichard
702  1$aLandau,$bMarsha
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996   $aAcquisition of mathematics concepts and processes$9803879
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