000 00321nam a2200121Ia 4500
008 190829s9999 xx 000 0 und d
082 _a530.15
_bGUP/M
100 _aGUPTA, B.D.
245 0 _aMATHEMATICAL PHYSICS
250 _a4th Ed.
260 _bVikas Publishing House Pvt. Ltd, New Delhi
_aNew Delhi
_c1997
942 _cBK
999 _c9871
_d9871