000 00401nam a22001457a 4500
005 20260312141105.0
008 260312b |||||||| |||| 00| 0 eng d
020 _a0335059007
050 _aQA.36.5.0611980
100 _aThe open university
245 _aAlgebraic structures
_cby the open university
260 _aBritian
_bThe open university
_c1980
300 _a45p. :ills,
_bPbk
942 _cBK
999 _c28808
_d28808