Langum, John K.   x <br/><br/>
Problems and questions on the principles of economics   x  

 - x  
 - Boston   Ginn   1939  
 - viii, 212p.  
<br/><br/>
<br/><br/><label>ISBN: </label>x      
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics, theory of  Economics, theory of  
<br/><br/><label>Dewey Class. No.: </label>330.1/LAP