000 00262nam a2200121Ia 4500
001 251
008 160925s9999 xx 000 0 und d
020 _a9789814573009
100 1 _aDr Evelyn Tan
245 1 0 _atop maths workbook 6A
260 _bAlston
942 _cAP
999 _c7150
_d7150