000 00329nam a2200121Ia 4500
008 200806s9999 xx 000 0 und d
082 _a511.3
_bOPE
110 _aOPEN University of Sri Lanka
245 0 _aIntroduction to pure mathematics
260 _aNugegoda
_bThe Open University press
_c1983
300 _a11p
942 _cPRP
999 _c141364
_d141363