Poynting <br/><br/>
University text book of physics 

 -  1949 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>37155 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sound
<br/><br/><label>Dewey Class. No.: </label>C3, H98