Copi, Irving M. <br/><br/>
Essentials of logic / 
Irving M. Copi, Carl Cohen with Daniel E. Flage 
 - 2nd ed. 
 - Upper Saddle River, NJ :  Pearson Prentice Hall,  2007 
 - 450 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>013238034X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic--Textbooks