000 00265nam a22001217a 4500
082 _a510 MAR'C
100 _aMARSH, L.G
_975910
245 _aCHILDERN EXPLORE MATHEMATICS
250 _a3RD
260 _aLONDON
_bA & C BLACK
_c1969
300 _a157P
942 _cBK
999 _c581321
_d581321