B.K. MATHUR, <br/><br/>
PRINCIPALES OF OPTICS 

 - KANPUR  NEW GOPAL PRINTING  1962 
 -  768P 
<br/><br/><label>Subjects--Topical Terms: </label><br/><br/>
<br/><br/><label>Dewey Class. No.: </label>535/MAT/PRI