000 00346nam a2200145Ia 4500
020 _a9780602575724
082 _b3042
_a510
100 _a"MERTTENS,RUTH","Ruth Merttens"
245 0 _aABACUS EVOLVE TEXTBOOK 1-4
260 _bGINN
_aUK
_c2007
300 _a80
944 _cBK
999 _c471864
_d471864