Ray, D.K.. <br/><br/>
General Physics /   Textual Documents 
K.D Ray. 
 - Kolkata :   Indians book concern ,   1974 
 - 394p. ;  
<br/><br/><label>Subjects--Index Terms: </label>Physics 
<br/><br/><label>Dewey Class. No.: </label>530  / RAY