000 00322nam a2200121Ia 4500
008 240112s9999 xx 000 0 und d
082 _aSIN-O
_b510
100 _aSingal, M K; Singal, A R
245 0 _aOlympiad mathematics
260 _a New Delhi
_bPitambar Publishing Company
_c1997
650 _aMathematics
942 _cBK
999 _c34123
_d34123