Ray Choudhury.S.C Sinha, D B <br/><br/>
Intermediate Physics 

 - 12th Ed. 
 - Calcutta  Modern Book Agency  1967 
 - p.665 
<br/><br/><label>Subjects--Topical Terms: </label><br/>General Physics<br/>Heat<br/>Velacity of Sound
<br/><br/><label>Dewey Class. No.: </label>530.1 R263I