000			00337nam a2200133Ia 4500
008			180611s9999||||xx |||||||||||||| ||und||
041			_aen
082			_a629.4352
100			_aDAVIES, Kenneth
245		0	_aIonospheric Radio Propagation
260			_aWashington _bNational Bureau of Standards _c1965
300			_axiv, 470p.
942			_cLL
999			_c7682 _d7682