Sharp, John R. <br/><br/>
Some fundamentals of information retrival 

 - London  ; Andre Deutsch  , 1965 
 - 224p. 
<br/><br/><label>ISBN: </label> £1.95 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Information
<br/><br/><label>Dewey Class. No.: </label>025.04  / SHA