000 00290nam a22001337a 4500
008 170814b xxu||||| |||| 00| 0 eng d
020 _a9780028243146
041 _aeng
080 _a51
100 _a36
101 _aMAT
245 _aMATHEMATICAL CONCEPTS
_cGORDON,B.W
942 _2udc
_cBK
999 _c23388
_d23388