Thomas, Stephen N.,  1942- <br/><br/>
Practical reasoning in natural language / 
Stephen Naylor Thomas 
 - 4th ed. 
 - Upper Saddle River, N.J. :  Prentice Hall,  1997 
 - xvi, 504 p. :  ill. ;  24 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0136782698 
<br/><br/><label>LCCN: </label>96-018454 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Reasoning