Katz, William A  <br/><br/>
Introduction to reference work 

 - 3rd ed. 
 - New York:   McGraw-Hill Book Company,   1978 
 - xiii, 367p.  
<br/><br/> Vol.1 (Basic information sources)<br/>Vol.2 (Reference services and reference processes) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library science
<br/><br/><label>Subjects--Index Terms: </label>Reference work Information 
<br/><br/><label>Universal Decimal Class. No.: </label>D 025.5  / K9;L8.1