000 00319nam a2200145Ia 4500
008 190201s9999 xx 000 0 und d
082 _a519
082 _b5 R21A
100 _a"Ray, M."
245 2 _aA Text Book of Mathemati
260 _aNew Delhi
260 _bRam Prasad & Sons
260 _c1985
300 _a408
999 _c23473
_d23473