Jeffrey, Richard  . <br/><br/>
Formal logic : its scope and limits /  
Richard Jeffrey. 
 - 2nd ed /   . 
 - New Delhi :   McGraw-Hill Book ,   1981. 
 - xiv, 198p. :   ills., fig ;   23cm .  
<br/><br/>Includes index and bibliography 
<br/><br/><label>ISBN: </label> NULL (Pbk) 
<br/><br/><label>Subjects--Index Terms: </label>LOGIC, SYMBOLIC 
<br/><br/><label>Dewey Class. No.: </label>511.3  / JEF/F