000 00315nam a2200133Ia 4500
008 210212s9999||||xx |||||||||||||| ||und||
072 _aMT
082 _a510.92 Das.M4
100 _aGupta,B.D
245 0 _aMathematics Physics
260 _c1984
_bAnalytic Publishing Co.
_aDelhi
300 _a187p.
942 _cSU
999 _c92321
_d92321