Pen. J. <br/><br/>
Modern economics / 
J. Pen. 
 - Harmondsworth :  Penguin Books,  c1958 
 - 262 p. ;  18 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics
<br/><br/><label>Dewey Class. No.: </label>330.15   / PEN