Thomas,  Aquinas, Saint,  1225?-1274 <br/><br/>
On being and essence / 
Thomas Aquinas Saint ; translated with an introduction and notes by Armand Maurer 
 - Toronto :  Pontifical Institute of Medieval Studies,  [n.d.] 
 - 79 p. ;  20 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label> Dg 7 (pbk) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ontology<br/>Substance (Philosophy)
<br/><br/><label>Dewey Class. No.: </label>189.4