Polar atmosphere symposium at Oslo 2-8 July 1956  part 2 : ionospheric section 
edited by K. Weekes 
 - New York  Pergamon Press  1957 
 - xiii+212p.  figs; plates; tables 
<br/><br/><label>Subjects--Topical Terms: </label><br/>AtmosphereIonospherePolar Atmosphere
<br/><br/><label>Universal Decimal Class. No.: </label>551.510.535.4(98/99)(063)  / AGA