Copi and Kohen <br/><br/>
Introduction to logic 

 - 11th 
 - Delhi  Pearson  2002 
 - 647p 
<br/><br/><label>ISBN: </label>81-7808-966-1 
<br/><br/><label>Standard No.: </label>107092 
<br/><br/><label>Subjects--Index Terms: </label>Logic 
<br/><br/><label>Dewey Class. No.: </label>160  / COP