Copi, Irving M <br/><br/>
Introduction to logic 

 - 11 
 - New Delhi  PHI  2002 
 - xxi,647p. 
<br/><br/> Includes index. Reprint year 2004 Estern Economy Edition 
<br/><br/><label>ISBN: </label>81--203-2496-X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic<br/>Mathematical logic<br/>Symbolic logic