Ellis David <br/><br/>
Progress and problems in information retrieval / 
David Ellis 
 - Second edition. 
 - London :  Library Association Publishing,  1996. 
 - xx, 220 pages :  22 cm. 
<br/><br/> Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>1856041239 
<br/><br/><label>LC Class. No.: </label>Z 699 E44 1996 CIRC