B.D GUPTA <br/><br/>
MATHEMATICAL PHYSICS 

 - New Delhi  VIKAS PUBLISHING HOUSE PVT LTD  1993 
 -  1000P 
<br/><br/><label>Subjects--Topical Terms: </label><br/>
<br/><br/><label>Dewey Class. No.: </label>530.15/GUP/MAT