Hardwick, Philip. Khan, Bahadur. Langmead, John. <br/><br/>
An Introduction to Modern Economics. 

 - 4nd Ed. 
 - London :  Longman,   1986.  
 - xiii, 632 p. 
<br/><br/><label>ISBN: </label>0582305624 
<br/><br/><label>Dewey Class. No.: </label>330   / HAR