Mankiw, N. Gregory <br/><br/>
Essentials of economics 

 - 4th ed. 
 - Ohio  Thomson & South Western  2007 
 - 600 p 
<br/><br/><label>ISBN: </label>978- 0- 324- 23696- 5 
<br/><br/><label>LC Class. No.: </label>HB 171.5 .M263/