Encyclopedia of library and information science / 
Edited by Allen Kent. ...[et al.]. 
 - New York :  Marcel Dekker,  c 1979. 
 - Vols. :  ill. ;  26 cm. 
<br/><br/>V. 26- Role indicators to Scientific literature ; 
<br/><br/>334  334 
<br/><br/><label>ISBN: </label>0-8247-2026-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library science--Dictionaries.
<br/><br/><label>Dewey Class. No.: </label>020.3 / E19