Dewey, Melvil,  1851-1931. <br/><br/>
Dewey decimal classification and relative index (Vol. 4) / 
devised by Melvil Dewey. 
 - 20th ed. 
 - Albany, N.Y. :  Forest Press, a division of OCLC Online Computer Library Center,  c1989. 
 - vii, 960 ;  24 cm. 
 -  : Relative Index, Manual.  Volume 4 .
<br/><br/>
<br/><br/><label>ISBN: </label>0910608377 0910608415 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Classification, Dewey decimal.
<br/><br/><label>Dewey Class. No.: </label>025.431  / DED