Allen, James <br/><br/>
Natural language understanding 

 - New Delhi  Pearson Education  1995 
 - xv, 654p.  
<br/><br/> Includes bbliographical references and index. 
<br/><br/><label>ISBN: </label>8178088452 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural language processing