000 00311nam a2200145Ia 4500
020 _a9780602575090
082 _b1239
_a510
100 _a"RUTH MERTTENS"
245 0 _aABACUS EVOLVE 2
260 _bGINN
_c0
300 _a32
944 _cTR
999 _c567063
_d567063