000 00333nam a2200157Ia 4500
020 _a9780602575885
040 _cKoha
082 _bT-1310
_a510
100 _a"NA"
245 0 _aABACUS Textbook 3-6
260 _auk
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300 _a80
942 _2ddc
_cTR
999 _c716221
_d716221