000 00336nam a2200145Ia 4500
008 220926s9999 xx 000 0 und d
100 _aB.D.Gupta
245 0 _aMathematical Physics
250 _a1st Ed
260 _aNew Delhi
260 _bVani Educational Books
260 _c1986
650 _aMathematical Physics
942 _cBK
999 _c12182
_d12182