Copi, Irving, M. <br/><br/>
Introduction to logic  Irving M. Copi and Carl Cohen 

 - 10th ed. 
 - London :   Prentice-Hall International,   1998. 
 - 714 pages :   illustrations ;   24 cm. 
<br/><br/><label>ISBN: </label>9780138899240 
<br/><br/><label>LC Class. No.: </label>BC108  / C69 1978