Kent, Allen <br/><br/>
Encyclopedia of Library And Information Science ( Vol.-6)  : Copying to Departmental Libraries 
/ by  Allen Kent 
 - New York;  Marcel Dekker, INC.;  1971. 
 - vii, 683p. 
<br/><br/><label>ISBN: </label>0824721063 
<br/><br/><label>Dewey Class. No.: </label>020.3  / KEN/E