000 00290nam a2200133 4500
020 _a
_c
082 _a
100 _aDass, H K and Rama Varma
245 _amathematical physics
250 _a
260 _bS. Chand & Company (Pvt)Ltd., New Delhi
_c2014
590 _a
_b
_d
942 _cBK
999 _c451306
_d451306