Saiton, Gerald. <br/><br/>
Automatic text processing : the transformation, analysis and retreival of information by computer 
by Gerald Saiton 
 -  Addison-Wesley  1989 
 - xiii, 530p. 
<br/><br/><label>ISBN: </label>0201122 
<br/><br/><label>Dewey Class. No.: </label>029.7  / N89