Bergmann, Peter Gabriel <br/><br/>
Introduction to the theory of relativity /  
Peter Gabriel Bergmann with a foreword by Albert Einstein. 
 - 1a ed. 
 - New York :   Dover Publications,  1966 
 - 287 p. :  íl. ;  21 cm. 
<br/><br/>Incluye índice 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Relatividad (fisica)
<br/><br/><label>LC Class. No.: </label>QC173 .55   / B47 1966