Bergmann, Peter Gabriel. <br/><br/>
The riddle of gravitation 
[by] Peter G. Bergmann. 
 - New York  Scribner  [1968] 
 - xvi, 270 p.  illus., ports.  24 cm. 
<br/><br/>Bibliography: p. 261-264. 
<br/><br/><label>LCCN: </label>68011537  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Relativity Physics<br/>Gravitation
<br/><br/><label>LC Class. No.: </label>QC6  / .B454 
<br/><br/><label>Dewey Class. No.: </label>530.11