Reference and information services  an introduction 
<label>;</label> Wong, Melissa A. <label>;</label> Saunders, Laura 
 - 6th ed. 
 - California  Bloomsbury Publishing  2020 
 - 765p. 
 - Library and Information Science Text Series .
<br/><br/> E-book in ProQuest Database 
<br/><br/><label>ISBN: </label>9781440868849