ADLER, Ronald. <br/><br/>
Introduction tom general relativity 

 - 2nd ed 
 - New york  Mc-Grew hill com  1975 
 - 549p. 
<br/><br/><label>ISBN: </label>0-07-000423-4 
<br/><br/><label>Dewey Class. No.: </label>530.11