Ullmann, Walter,  1910- <br/><br/>
Principles of government and politics in the Middle Ages / 
Walter Ullmann. 
 - London :  Methuen,  1961. 
 - 320 p. ;  22 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Constitutional history, Medieval.<br/>State, The.
<br/><br/><label>Dewey Class. No.: </label>320.1  / ULP 1961