000 00323nam a2200145Ia 4500
008 220421s9999||||xx |||||||||||||| ||und||
020 _c745
040 _aET
100 _aPrakash Satya
245 0 _aMathematical Physics
260 _bSultan Chand & Sons
_aNEW DELHI
300 _a1570
500 _a55204
942 _cBK
999 _c61217
_d61217