Barker, Stephen F <br/><br/>
The elements of logic 

 - 5 
 - New York  McGraw-Hill  1989 
 - 291p 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0-07-003730-2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic<br/>Mathematical logic<br/>Symbolic logic