Cassirer , Ernst <br/><br/>
Substance and function and Einstein's theory of relativity 

 - New York  Dover Publications  1953 
 - xiii, 465p 
<br/><br/> Gratis. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Einstein -- Relativity<br/>Physics<br/>Relativity theory -- Einstein