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020 _a0719544564
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040 _bgre
_aCY-NiPEI
082 7 _a510
_223
245 1 0 _aSteps in understanding mathematics :
_bteachers΄resource book ; J. D. Collins.
260 _aLondon:
_bMurray,
_c1990.
300 _a264 p. :
_bill. ;
_c30 cm.
650 0 _aMathematics
_911246
700 1 _aCollins, J. D.
_4edt
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710 2 0 _aMurray
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911 _a035149
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999 _c13067
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