000 00358nam a2200133Ia 4500
008 180710s9999 xx 000 0 und d
020 _a184635
082 _a510
_bOPE
100 _aOPEN University of Sri Lanka
245 _aMathematics: unit 1-recurrence relations
260 _aMilton Keynes
_bOpen University press
_c1982
300 _a54 p.
942 _cPR
999 _c71088
_d71088