Subrahmanyam, N. and Brijal. <br/><br/>
Practical physics / 

 - New Delhi,  S. Chand & Company,  c1986. 
 - viii, 139p. ;  ill. ;  21.5 cm. 
 -  Part I .
<br/><br/><label>ISBN: </label>NA 
<br/><br/><label>LC Class. No.: </label>1540 
<br/><br/><label>Dewey Class. No.: </label>530.15