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020 _a1898611092
035 _a(KOC)AC7FAE1B5C8846F8962421D5F06E5A4D
040 _aKOLkk
_cKOC
100 1 _aBills, Chris.
_951604
245 1 0 _aEight days a week :
_bpuzzles, problems and questions to activate the mind /
_cby Vhris Bills.
260 _aDerby :
_bAssociatin of Teachers of Mathematics,
_c2001.
300 _a58 p. : ;
_c16 cm.
650 7 _aMathematics
_vProblems, exercises, etc.
_2sears.
_91372
650 7 _aMathematics
_zStudy and teaching.
_2sears.
_97612
942 _2ddc
_cBK
999 _c32277
_d32277