000 00313nam a22001337a 4500
003 OSt
008 210324b ||||| |||| 00| 0 eng d
082 _a530.14
_bYAD/E
100 _aYadava ,R.L
245 _a Electromagnetic fields and waves
260 _aNew Delhi
_bKhanna
_c2019
300 _a402
942 _cBK
999 _c14780
_d14780