Katz, Bill. <br/><br/>
Introduction to reference work; volume II :  Basic information sources / 
William A. Katz 
 - 6th ed. 
 - New York :  McGraw-Hill,  cop.1992 
 - XVII,485 s. 
<br/><br/> Litteratur etter kap. 
<br/><br/><label>ISBN: </label>0-07-033638-5 
<br/><br/><label>LC Class. No.: </label>Z711 
<br/><br/><label>Dewey Class. No.: </label>025.52