Jeffrey, Richard C. <br/><br/>
Formal logic : its scope and limits 
Richard Jeffrey. 
 - 2d ed. 
 -  McGraw-Hill New York  1981  c1981 
 - xiv, 198 p. ;24 cm. 
<br/><br/> Bibliography: p. [189]-198. 
<br/><br/><label>ISBN: </label>0070323216 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic.--BC
<br/><br/><label>LC Class. No.: </label>BC71.J38 1981