Copi, Irving M <br/><br/>
Symbolic logic / 
Irving M Copi 
 - 3rd.ed 
 - New York :   Macmillan,   1967 [Printing 1968] 
 - 374 p. :  ill. ;  26 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic, Modern.<br/>Logic, Symbolic and mathematical.
<br/><br/><label>Dewey Class. No.: </label>511.3  / COS 1968