000 00367nam a2200157Ia 4500
020 _a9780602575144
040 _cPK-LaCSN
082 _b79-T
_a510
100 _a"Merttens, Ruth"
245 0 _aAbacus evolve 3 textbook 1
260 _bPEARSON
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300 _a80
942 _2ddc
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999 _c764924
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