Encyclopedia of library and information science 

 - New York:   Marcel Dekker, Inc.,   1979 
 - vi, 548p. 
<br/><br/>  Vol.26 (Role indicators to scientific literature) 
<br/><br/><label>ISBN: </label>0-8247-2026-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library science
<br/><br/><label>Subjects--Index Terms: </label>Information resources Libraries servies 
<br/><br/><label>Universal Decimal Class. No.: </label>D 02+002(038)  / N6.57