Gregory, Mankiw N. <br/><br/>
Principles of economics / 
Mankiw N Gregory. 
 - Fortworth :  The dryden press harcourt brace college pub,  1999. 
 - xx, 512p.ill: 
<br/><br/> Includes bibliographic references and index 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>0-8089-2071-5 
<br/><br/><label>LC Class. No.: </label>330 G8621 1999