Katz, William,  1924- <br/><br/>
Introduction to reference work / 
William A. Katz. 
 - 3rd ed. 
 - New York :  McGraw-Hill,  1978. 
 - 2 v. ;  24 cm. 
 - McGraw-Hill series in library education .
<br/><br/>Includes bibliographies and indexes. 
<br/><br/> Open access. 
<br/><br/><label>ISBN: </label>0070333319 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Reference services (Libraries)<br/>Reference books.