Samuelson, Paul A. <br/><br/>
Economics / 
by Paul A. Samuelson, William D. Nordhaus. 
 - 13th ed. 
 - New York, N.Y. :  McGraw-Hill,  1989. 
 - xl, 1013 p. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0070547866 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics.