Rijsbergen C J Van <br/><br/>
Information retrieval 

 - 2nd 
 - London  Bulter Worths         1981 
 - ix, 208p. Bibliography  p 192-204  cm. 
<br/><br/><label>Standard No.: </label>26932 
<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, M1