000 002980000a22001210004500
245 _aThe mathematical theory of electricity and magnetism
100 _aSinha, D.K.
100 _aBandyopadhyaya, R.
260 _aDelhi
_bMacmillan
_c1977
080 _a537.01
_bS5
041 _aEN
942 _cBK
999 _c108941
_d108941