TOWNLEY, Helen M. <br/><br/>
Systems Analysis for Information Retrieval 

 - London  A grafton book  1978 
 - xiv, 121p. 
<br/><br/><label>ISBN: </label>233969209 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Systems Analysis<br/>Information
<br/><br/><label>Dewey Class. No.: </label>3