Dewey decimal classification and relative index /
devised by Melvil Dewey ; edited by John P Comaromi, Julianne Beall, Winton E. Matthews, jr., Gregory R. New.
- Ed. 20
- N.Y : Forest Press, 1989.
- 4 vols. ; cm.
Contents: v. 1. Introduction. Tables -- v. 2-3. Schedules -- v.4. Relative index. Manual.