Leff, Gordan <br/><br/>
Medieval thought 

 - Harmondsworth  Penguin Books  1958 
 - 316 
 - Pelican Books A 424 .
<br/><br/> With bibliography 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Political science<br/>Political science, theory and principle
<br/><br/><label>Dewey Class. No.: </label>320.01  / L521m