Katz, William A <br/><br/>
Introduction to reference work: V 002 :reference services and reference processes 

 - 7th 
 - New York  McGraw Hill  1997 
 - xv,286p p. 
<br/><br/><label>ISBN: </label>0-07-034278-4 
<br/><br/><label>Subjects--Index Terms: </label>Reference services (Libraries)