Pen, J.  1921- <br/><br/>
Modern economics / 
by J. Pen ; translated from the Dutch by Trevor S. Preston. 
 - Harmondsworth :  Penguin Books,  1974. 
 - 275 p. :  ill. ;  18 cm. 
<br/><br/>Includes bibliographical references : (p. 249) and index. 
<br/><br/><br/>eng dut 
<br/><br/><label>ISBN: </label>0140207104 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics.