Lewis, W. Arthur (William Arthur), <br/><br/>
The principles of economic planning 
/ by W. Arthur Lewis. 
 - 3rd. Ed. 
 - Unwin University Books: London  1969. 
 - xxviii, 7-128 psges:    21 cm. 
<br/><br/><label>ISBN: </label>2043301371 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Economic policy