Nelkon, Michael <br/><br/>
Optics, waves and sound / 
M. Nelkon. 
 - 6th ed. 
 - London :  Heinemann Educational,  1978. 
 - p. 343-642. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Optics.<br/>Waves.<br/>Sound.<br/>Light.