000 002610000a22001210004500
008 160511b1965 xxu||||| |||| 00| 0 eng d
041 _aeng
080 _a537.1
_bN4
942 _cBK
100 _aNelkon, M.
245 _aElectricity and magnetism
260 _c1965
999 _c9049
_d9049