Dewey, Melvil <br/><br/>
Dewey decimal classification and relative index 

 - 20th edition 
 - New York  Forest Press Inc.  c1989 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Classification, Dewey Decimal
<br/><br/><label>Dewey Class. No.: </label>R 025.431 D515d 1989