Vickery, B. C. <br/><br/>
On retrieval system theory 

 - 2nd ed. 
 - London  ;  Butterworths  , 1965 
 - xi,191p. 
<br/><br/><label>ISBN: </label> £2.50 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Information & Storage Retrieval<br/>Library Science
<br/><br/><label>Dewey Class. No.: </label>025.524  / VIC