Kent, Allen and others Ed. <br/><br/>
Encyclopedia of library and information science 

 - New York  Morcel Dekker, Inc.  1975 
 - 496p. 
<br/><br/><label>ISBN: </label>0-8247-2013-X 
<br/><br/><label>Dewey Class. No.: </label>025.03   Ken.L5;13