Dewey,  Melvil <br/><br/>
Dewey decimal classification scheme 21st editon : 

 - Dublin  OCLC, Inc.,  1998 
 - p. 
<br/><br/> This is the xerox copy of original ddc volume for library reference 
<br/><br/><label>Dewey Class. No.: </label>025.431  / DEW