"Katz, william A." <br/><br/>
Introduction to reference work reference semices and reference. proceses. 

 - 2nd ed 
 - New York L  Mcgrow Hill.  1969 
 - 274 p. 
<br/><br/><label>ISBN: </label>70333548 
<br/><br/><label>Subjects--Topical Terms: </label><br/>refernce Semics libraries .
<br/><br/><label>Dewey Class. No.: </label>025.52 Kat .