Pen, J.  1921-2010. <br/><br/>
Harmony and conflict in modern society, 

 - London :  New York [etc.]  McGraw-Hill ,  1966. 
 - [7], 294 p.  23 cm. 
<br/><br/><label>LCCN: </label>66073702  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics.
<br/><br/><label>LC Class. No.: </label>HB171  / .P4533 1966a 
<br/><br/><label>Dewey Class. No.: </label>303.6  / PEH 1966