The Librarian and reference queries :  a systematic approach 
Gerald Jahoda..., Judith Schiek Braunagel...  
 - New York [etc.]  Academic Press  1980.  
 - 175 p.  23 cm. 
 - Library and information science. .
<br/><br/>Bibliografia. âIndex.  
<br/><br/><label>ISBN: </label>0123797608 (cart.) 9780123797605 (cart.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Documentaciâo