Leff, Gordon. <br/><br/>
History and social theory 

 - New York:  Doubleday & company,  1971. 
 - xiv, 225 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Historiography
<br/><br/><label>Dewey Class. No.: </label>907  / LEF