Case, Karl. E . <br/><br/>
Principles of microeconomics  
Karl E. Case and Ray C.Fair 
 - 8th ed. 
 - New jersey  Pearson prentice hall  c2007 
 - xxxii, 458 p.:  ill.;  27 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0131994859  Tshs.45,000/= 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Microeconomic<br/>Elasticity<br/>The world economy 
<br/><br/><label>Dewey Class. No.: </label>338.5 CAS