David P <br/><br/>
Propagation of waves 

 - Oxford  Pergamon Press          1969 
 - x, 329p.  cm. 
<br/><br/><label>Standard No.: </label>28447 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>C6:25, K9