Sharp John R <br/><br/>
Information retrieval    Notes for students    

 - London  Deutsch U.K.           1970 
 - 90p. Bib. p 79-85  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library Science
<br/><br/><label>Dewey Class. No.: </label>2:(D6,9(B), L0