Sayre, E.John <br/><br/>
Principles of microeconomics/ 
John E.Sayre 
 - 7th ed. 
 - Canada:  McGraw-Hill,  2012. 
 - xlvi,459 p.: 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>9780070385467 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics