Katz, William Armstrong,  1924- <br/><br/>
Introduction to reference work / 
William A. Katz 
 - 7th ed. 
 - New York :  McGraw-Hill,  1997 
 - 2 v. ;  24 cm. 
<br/><br/>Contenido: v. 1. Basic information sources -- v. 2. Reference services and reference processes 
<br/><br/><label>ISBN: </label>0070242776 (v. 1 : papel libre de acido) 0070342784 (v. 2) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Libros de consulta--Bibliografia<br/>Servicios de Consulta (Bibliotecas)
<br/><br/><label>LC Class. No.: </label>Z711  / K37 1997