000 00290nam a2200121Ia 4500
008 211209s1981 xx 000 0 und d
041 _aeng
082 _aSHA/GUP
100 _aSHARMA
245 _aMATHEMATICAL METHODS
260 _aNEW DELHI
_bKRISHNA PRAKASHAN MANDIR
_c1981
300 _a94
999 _c20840
_d20840