000 00382nam a2200157Ia 4500
020 _a9780602575748
082 _bT-1516
_a510
100 _a"Merttens, Ruth","Ruth Merttens"
245 0 _aAbacus evolve 4 textbook 3
260 _bPEARSON
_aOXFORD
_c2007
300 _a80
942 _cTB
944 _cText Books
999 _c818464
_d818464