Katz, William A.,  1924- <br/><br/>
Introduction to reference work 
by William A. Katz 
 - 2nd ed. 
 - New York  McGraw-Hill Book  1974 
 - 2 v. ; 23 cm. 
<br/><br/>Includes bibliographies. 
<br/><br/>v. 2. Reference services and reference process 
<br/><br/><label>ISBN: </label>0070333548 
<br/><br/><label>LCCN: </label>73-8658 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Reference services (Libraries)<br/>Reference books--Bibliography