Welch, Patrick J. <br/><br/>
Economics, theory & practice / 
Patrick J. Welch, Gerry F. Welch. 
 - 9th ed. 
 - Hoboken, N.J. :  John Wiley,  c2010 
 - xx, 536 p. :  col. ill. ;  26 cm. 
<br/><br/> Previous ed.: 2006. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0470450096 (pbk.) 9780470450093 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics.
<br/><br/><label>Subjects--Index Terms: </label>Học thuyết Kinh tế học 
<br/><br/><label>Dewey Class. No.: </label>330