Copi, Irving M. <br/><br/>
Symbolic logic   
by Irving M. Copi 
 - 5th 
 - New York  Macmillan  1979 
 - xiii, 398p. 
<br/><br/><label>ISBN: </label>0023249803 
<br/><br/><label>Dewey Class. No.: </label>511.3  / N79