Lews, CI . <br/><br/>
Symbolic Logic /  Textual Documents 
CI Lews, CH Langford. 
 - 1st ed. / 
 - New York :  The Century Co. ,  1932. 
 - 506p. :  ill. ;  24cm . 
<br/><br/>Index 
<br/><br/><label>ISBN: </label> HB 
<br/><br/><label>Subjects--Index Terms: </label>Logic-Symbolic 
<br/><br/><label>Dewey Class. No.: </label>164  / L 585 SY