Ellis David. <br/><br/>
New horizons in information retrieval 

 - London  Library Association        1990 
 - x,138p Bibliography  cm. 
<br/><br/><label>Standard No.: </label>7,046 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>LIBRARY SCIENCE
<br/><br/><label>Dewey Class. No.: </label>2:97, N0 (2D)