Modern physics 
D.L. Sehgal...[et.al.] 
 - 7th 
 - New Delhi  Sultan Chand  1995 
 - xii,4.118 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physics
<br/><br/><label>Dewey Class. No.: </label>539  / SIN N2