Langer, Susane K. <br/><br/>
An introduction to symbolic logic 
by Susane K.Langer 
 - London  George Allen & Unwin  1937 
 - 363 p.;23 cm.  
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Philosophy
<br/><br/><label>Dewey Class. No.: </label>160  / LAN