Freundlich, Erwin <br/><br/>
The foundations of Einstein's theory of gravitation. 
With a pref. by Albert Einstein. Translated from the 4th German ed., with two essays, by Henry L. Brose. With an introd. by H. H. Turner. 
 - New York  E. P. Dutton  [1920?] 
 - xvi, 140 p.  20 cm. 
<br/><br/> Translation of Die Grundlagen der Einsteinschen Gravitationstheorie. 
<br/><br/><label>Subjects--Personal Names: </label><br/>Einstein, Albert 1879-1955. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Gravitation<br/>Relativity Physics