RICHARDS, J.P.G. <br/><br/>
Waves / 
[by] J.P.G.Richards, R.P.Williams 
 - London  Penguin books  1972 
 - 192 p. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>45587 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Waves
<br/><br/><label>Dewey Class. No.: </label>531.1133  / RIC