Scott, Mona L.,  <br/><br/>
Dewey Decimal Classification, 21st edition :   a study manual and number building guide 

 - ix, 198 pages ;   24 cm 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>1563085984 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Classification, Dewey Decimal
<br/><br/><label>Dewey Class. No.: </label>025.431