Ray, M.  1908- <br/><br/>
Theory of relativity:  special and general, 
by M. Ray. 
 - Delhi,  S. Chand,  1965. 
 - 251 p.  24 cm. 
<br/><br/><label>LCCN: </label>sa 66005907  
<br/><br/><label>LC Class. No.: </label>QC6  / .R28 
<br/><br/><label>Dewey Class. No.: </label>530.11