000 00292nam a22001097a 4500
008 210222b ||||| |||| 00| 0 eng d
020 _a0153515651
050 _aQA 7 H37 1991
245 _aMATHEMATICS UNLIMTED
_cHBJ
260 _aTORONTO
_bHBJ
_c1991
942 _2lcc
_hQA 7 H37 1991
999 _c385
_d385