Welch, Patrick J. , <br/><br/>
Economics :  theory and practice / 
Patrick J. Welch, Gerry F. Welch. 
 - 8th ed. 
 - xx, 532 pages ;  ol. bill. :  26 cm. 
<br/><br/><label>ISBN: </label>9780471679462 0471679461 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics.
<br/><br/><label>LC Class. No.: </label>HB171.5   / .W44 2007