000 00319nam a22001337a 4500
020 _a9780602575809
040 _cPK-LaCSN
082 _aT 510
_bMER-A
100 _a"Merttens, Ruth"
245 _aAbacus evolve text Book 2 (5)
300 _3text
_a80 pages :
_billustration :
_c26 cm
942 _2ddc
_cTB
999 _c825434
_d825411