000 00337nam a2200145Ia 4500
020 _a0602266564
082 _bT-270
_a510
100 _a"MERTTENS, RUTH"
245 0 _aABACUS TEACHER CARDS
260 _bGINN AND COMPANY
_aLondon
_c1996
300 _a0
944 _cTR
999 _c805422
_d805422