Harnam Singh, etc. <br/><br/>
Text book of physics.V1. 
Harnam Singh, etc. 
 - ed. Rev ed 11. 
 -  Frank Bros. & Co.  1973 
<br/><br/><label>ISBN: </label> 18.75 
<br/><br/><label>Dewey Class. No.: </label>530HAR.L3.1