Microecomomics/ 
T. S. Ragan. 
 - 4th ed. 
 - Toronto:  Pearson,  2011. 
 - xiv, 891 p. : 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>9781256348078 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Microeconomics
<br/><br/><label>LC Class. No.: </label>HB 172 .5 .R35 2011