Smith, Peter <br/><br/>
An introduction to formal logic / 
Peter Smith 
 - Cambridge :  Cambridge Univ. Press,  2003 
 - 357 p. :  ill. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0521008042 
<br/><br/><label>Subjects--Topical Terms: </label><br/>LOGIC
<br/><br/><label>LC Class. No.: </label>BC 71  / S647I