Dewey, Melvil. <br/><br/>
Dewey decimal classification and relative index / 
devised by Melvil Dewey ; edited by Joan S. Mitchell ... [et al.]. 
 - 21st ed. 
 - Albany, N.Y. :  Forest Press,  c1996. 
 - volumes ;  24 cm. 
<br/><br/>v. 4- Relative Index and Manual. 
<br/><br/><label>ISBN: </label>0910608504(set) 0910608512 0910608520  0910608539 0910608547 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Classification, Dewey decimal.
<br/><br/><label>Dewey Class. No.: </label>025.431 DEW