Dewey, Melvil.,  author. <br/><br/>
Dewey decimal classification and relative index / 
devised by Melvil Dewey edited by John P Comaroni ; Julianne Beall ; Winton E Matthews & Gregory R New. 
 - Twentieth edition. 
 - Albany, N.Y. :  Forest Press, a division of OCLC Online Computer Library Center,  1989. 
 - 4 v. ;  24 cm. 
<br/><br/>v. 1. Introduction. Tables -- v. 2-3. Schedules -- v. 4. Relative index. Manual. 
<br/><br/><label>ISBN: </label>0910608385 v.1 (hardback) 0910608393 v.2 (hardback) 0910608407 v.3 (hardback) 0910608415 v.4 (hardback) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Classification, Dewey decimal.