000 00366nam a2200157Ia 4500
020 _a9780602575885
082 _bT-1282
_a510
100 _a"Merttens, Ruth"
245 0 _aAbacus evolve 6 textbook 3
260 _bPEARSON
_aOXFORD
_c2007
300 _a80
942 _cTR
944 _cText Books
999 _c818324
_d818324