Dewey, Melvil  (1851-1931) <br/><br/>
Dewey decimal classification and relative index /  Vol. 4,  Relative index 
devised by Melvin Dewey; edited by Joan S. Mitchell, Julianne Beall, Giles Martin, Winton E. Matthews, Gregory R. New. 
 - Edition 22 
 - Dublin, Ohio  OCLC  2003 
 - 928 σ. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Βιβλιοθηκονομία
<br/><br/><label>Dewey Class. No.: </label>020