Verma, R. K. <br/><br/>
Ray optics  [Book] / 
Dr. R. K. Verma. 
 - New Delhi :  Discovery Publishing House,  2006. 
 - 341 p. ;  20 cm. 
<br/><br/> Includes index 
<br/><br/> All. 
<br/><br/><label>ISBN: </label>8183561136 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Optoelectronics.<br/>Optoelectronic devices.
<br/><br/><label>Dewey Class. No.: </label>621.381045