Etiqueta de registo: 00321nx b2200121n 45
001 198309
095 ## $aPTBN00164325
100 ## $a19951211apory0103 ba
102 ## $aUS
152 ## $aRPC
210 01 $aEstados Unidos.$bNational Council of Teachers of Mathematics
410 02 $aNational Council of Teachers of Mathematics$3198310
801 #0 $aPT$bBN
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