Ganshof.F L. <br/><br/>
Feudalism. 

 - 3rd  ed. 
 - New york :  Harper,  1961. 
 - 170  p. ;    cm. 
<br/><br/>bibliography. 
<br/><br/><label>ISBN: </label> $ 
<br/><br/><label>Subjects--Topical Terms: </label><br/>feudalism.