Kent, Allen <br/><br/>
Encyclopedia of Library and Information science, Vol.54, Supplement-17 

 - New York  Marcel Dekker, INC.  1994 
 - 400p.  24 cm. 
<br/><br/><label>ISBN: </label>0824720547 
<br/><br/><label>Dewey Class. No.: </label>020.3  / ENC