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200 1 $aApproaches to algebra$eperspectives for research and teaching$fedit by Nadine Bednarz, Carolyn Kieran, Lesley Lee
210   $aBoston ; Dordrecht ; London$cKluwer Academic$dc1996
215   $aXV, 345 p.$cill.$d24 cm
225 1 $aMathematics Education Library$v18
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