Silk, Leonard S <br/><br/>
Contemporary economics : principles and issues 

 - 2nd ed 
 - McGraw-Hill book company, New York  1970 
 - xiii, 591p 
<br/><br/><label>ISBN: </label>0-07-057441-3 
<br/><br/><label>Dewey Class. No.: </label>330 Sil