Principles of microeconomics/ 
Mankiw ,Gregory N...[et al.]. 
 - Toronto :  Nelson Nelson,  2008. 
 - 529 p. : 
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Microeconomics
<br/><br/><label>LC Class. No.: </label>HB172 .P744 2007