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

 - 23th. ed. 
 - Ohio  OCLC Online Computer Library Centre   2011 
 - 965 p. 
<br/><br/>Vol 4, Relative index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Classification; Dewey decimal 
<br/><br/><label>Dewey Class. No.: </label>025.431  / D515d 2011