000 00313nam a22001337a 4500
999 _c6400
_d6400
020 _a0719547520
082 _a310
100 _aCox C.J.
245 _aNational Carriculum Edition Understanding Mathematics
250 _a2nd ed
260 _aLondon
_bJOHN MURRAY
_c1989
300 _a234p. :
_bill, ;
942 _cBK