000 00302nam a2200121Ia 4500
008 190711s9999 xx 000 0 und d
082 _a530.15 G9774
100 _aGUPTA.B.D
245 0 _aMATHAMETICAL PHYSICS
260 _aNEW DELHI
_bVikas publishing House
_c1978
300 _a22X15
942 _cBK
_2DDC
999 _c17810
_d17810