Kahn, Gilbert <br/><br/>
Progressive filing 
by Gilbert Kahn and Theodore Yerian 
 - 6th ed. 
 - New York  McGraw-Hill  1955 
 - vi, 151p 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Filing systems<br/>Indexing
<br/><br/><label>Dewey Class. No.: </label>I56 K122