Understanding economics / 
Russell S. Sobel ... [et al.] 
 - 13th ed. 
 - Australia :  South-Western,  c2011. 
 - xxvii, 553 p. :  ill. 
<br/><br/><label>ISBN: </label>9780538756181 0538756187 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics
<br/><br/><label>LC Class. No.: </label>HB171.5  / .U55S