Khanna, D R; Gulati, H R <br/><br/>
Fundamentals of optics / 
Khanna, D R; Gulati, H R 
 - 8 ed. 
 -  R Chand & Co., New Delhi,  1979 
 - p. ;  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Light & paraphotic phenomena (Optics); Physics
<br/><br/><label>Dewey Class. No.: </label>535 KHA-F8