GREGORY, Frederick, <br/><br/>
Scientific materialism in nineteenth century Germany / 
Frederick Gregory. 
 - Dordrecht, Holland ;  Boston :  c1977. 
 - xxii, 279 p. :  ill. ; 
<br/><br/> Includes bibliography and index 
<br/><br/><label>ISBN: </label>902770760X. 
<br/><br/><label>Dewey Class. No.: </label>146.30943