000 00202nam a2200085Ia 4500
008 221021s9999 xx 000 0 und d
100 _aDOWNES, L
_9173032
245 0 _aSUCCESSFUL MATHEMATICS
942 _cBK
_w561
_xJohn Tresidder
_y561
_zJohn Tresidder
999 _c734292
_d734291