Jeffrey, Richard C. <br/><br/>
Formal logic :  its scope and limits  / 
by Richard C. Jeffrey. 
 - New York:  McGraw-Hill ,  1967. 
 - xii, 238 p. :  ill.  ;  23 cm. 
<br/><br/>Includes bibliography. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic.
<br/><br/><label>Dewey Class. No.: </label>160 JEF