Katz, William A. <br/><br/>
Introduction to reference work 
William A. Katz. 
 - 7th ed. 
 - New York  McGraw-Hill  c1997. 
 - 2 v.  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/>v. 1. Basic information sources -- v. 2. Reference services and reference processes. 
<br/><br/><label>ISBN: </label>0070342776 (v. 1 : acid-free paper) 0070342784 (v. 2) 
<br/><br/><label>LCCN: </label>96001741  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Libros de referencia.<br/>Reference books--Bibliography.<br/>Reference services (Libraries)
<br/><br/><label>LC Class. No.: </label>Z711  / .K32 1997 
<br/><br/><label>Dewey Class. No.: </label>025.52