Cassell, Kay Ann. <br/><br/>
Reference and information services in the 21st century :  an introduction / 
Kay Ann Cassell and Uma Hiremath. 
 - 3rd ed. 
 - London :  Facet,  2013. 
 - xvii, 510 p. :  ill.  23 cm. 
<br/><br/> Previous ed.: 2009. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9781856048392 (pbk.)  RM228.01 185604839X (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Reference services (Libraries)