Sexton, Robert L. <br/><br/>
Essentials of economics / 
Robert L. Sexton.  
 - 1st ed. 
 - Mason, OH :  Thomson/South-Western,  2002. 
 - p.  cm. 
<br/><br/><label>ISBN: </label>0324176708 
<br/><br/><label>LCCN: </label>2002111497