000 00347nam a2200145Ia 4500
020 _a9780602575724
082 _bt-1178
_a510
100 _a"Merttens,Ruth"
245 0 _aAbacus Evolve Textbook 1 (4)
260 _b,Pearson Education
_auk
_c2007
300 _a80
944 _cTB
999 _c677098
_d677098