Alʹpert, Yakov L.  <br/><br/>
Radio wave propagation and the ionosphere  v. 1 : the Ionosphere 
Yakov L. Alʹpert 
 - New York  Consultants Bureau  1973 
 - xii+430p.  figs; refs; tables 
<br/><br/><label>ISBN: </label>0-306-17141-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radio-wave PropagationIonosphere
<br/><br/><label>Universal Decimal Class. No.: </label>551.510.535.4:621.372  / ALP