Pen, J.  1921- <br/><br/>
Modern economics / 
by J. Pen. ; translated from the Dutch by Trevor S. Preston 
 - Baltimore :  Penguin Books,  1965 
 - 265 p.  ill. ;  18 cm. 
<br/><br/>Bibliography : p. 249. 
<br/><br/><br/>eng dut 
<br/><br/><label>LCCN: </label>65-003800 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics