Kent, Allen <br/><br/>
Encyclopedia of Library And Information Science ( Vol.-42)  : Supplement7 
/ by  Allen Kent 
 - New York;  Marcel Dekker, INC.;  1987. 
 - vi, 428p. 
<br/><br/><label>ISBN: </label>0824720423 
<br/><br/><label>Dewey Class. No.: </label>020.3  / KEN/E