Katz, William A.  1924 <br/><br/>
Introduction to reference work / 
William A. Katz. 
 - 3d. ed. 
 - New York :  McGraw-Hill,  c1978. 
 - 2 v. 
 - McGraw-Hill series in library education .
<br/><br/> Basic information sources --  Reference services and reference processes  v. 1.  v. 2. 
<br/><br/><label>ISBN: </label>0070333319 (v.1.) 0070333327 (v. 2) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Servicios de consulta (Bibliotecas)<br/>Obras de consulta--Bibliografía
<br/><br/><label>LC Class. No.: </label>Z711  / K37 1978