Friedmann, Wolfgang Gaston, <br/><br/>
Legal theory 
by W. Friedmann. 
 - 5th ed. 
 - New York  Columbia University Press  1967. 
 - xx, 607 p.  23 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0231031009 
<br/><br/><label>LCCN: </label>67026509  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Law--Philosophy.
<br/><br/><label>Subjects--Index Terms: </label>Derecho  Filosofía. 
<br/><br/><label>Dewey Class. No.: </label>340/.1