Kochen, Manfred <br/><br/>
Principles of information retrieval   
by Manfred Kochen 
 - Los Angles  Melville Pub.  1974 
 - xix, 203p. 
 - A volume in the Information sciences Series .
<br/><br/><label>ISBN: </label>0471496979 
<br/><br/><label>Dewey Class. No.: </label>025.06  / N74