Samuelson, Paul A. <br/><br/>
Economics / 
Paul A. Samuelson, William D. Nordhaus. 
 - 18th ed. 
 - Boston :  McGraw-Hill,  2005. 
 - xxii, 776 p. 
<br/><br/><label>ISBN: </label>0072872055 : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics.