Leff, Gordon. <br/><br/>
Medieval Thought: St. Augustine to Ockham. 

 - [Harmondsworth, Middlesex]:  Penguin Books,  [1958. 
 - 316 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Religious thought--Middle Ages, 600-1500.
<br/><br/><label>LC Class. No.: </label>B 721  / .L4 1958