O'Sullivan, Arthur. <br/><br/>
Microeconomics :  principles, applications, and tools / 
Arthur O'Sullivan, Steven M. Sheffrin, Stephen J. Perez. 
 - 5th ed. 
 - Upper Saddle River, NJ :  Pearson Prentice Hall,  c2008. 
 - xxxii, 448 p. :  ill. (chiefly col.), map ;  28 cm. 
 - Vango notes .