Dewey, Melvil. <br/><br/>
DDC20  Volume 4 /  
edited by Comaromi John P.. 
 - 20th ed /  
 - New York :   OCLC Online Computer Library Centre, Inc ,   1997 
 - 961p :  
<br/><br/><label>ISBN: </label>0-910608-41-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library
<br/><br/><label>Dewey Class. No.: </label>2:51M0  / M9.4