000 00311nam a2200145Ia 4500
008 190201s9999 xx 000 0 und d
082 _a530
082 _b41 SIN
100 _a"Singh, R N"
245 0 _aElectromagnetic Waves An
260 _aNew Delhi
260 _bT.M.H.
260 _c1991
300 _a538
999 _c34837
_d34837