Judd, F. C. <br/><br/>
Radio wave propagation :   (HF bands) / 
F. C. Judd 
 - ix, 145 pages :   illustrations, maps, 1 portrait  
 - Radio amateur's guide .
<br/><br/><label>ISBN: </label>9780434909261 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radio wave propagation