Bergmann, Peter Gabriel <br/><br/>
Introduction to the theory of relativity 

 - New Delhi  Prentice-Hall  1942 
 - xvi, 287p 
<br/><br/> Reprint year 1969. Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>General theory -- Relativity<br/>Physics<br/>Relativity<br/>Unified field theory