Barden, Bertha R <br/><br/>
Book numbers:   A manual for students with a basic code of rules 

 - Chicago:   American Library Association,   1937 
 - 31p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Book numbers
<br/><br/><label>Subjects--Index Terms: </label>General principles 
<br/><br/><label>Universal Decimal Class. No.: </label>D 025.421  / G7