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024 _a19154
037 _cTextual
040 _aCSL
_beng
_cCSL
041 _aeng
082 _aB, L3.20/.21
100 _aopen university
245 0 _aTopics in Pure Mathematics
260 _aMilton
_bKeynes Open University
_c1973
300 _ap.
_ccm.
490 _aMathematics: Second level course
942 _hB, L3.20/.21
_cTEXL
_2CC
999 _c98743
_d98743