Case Karl. E <br/><br/>
Principals of Microeconomics 
Karl E. Case [et al...] 
 - 9th ed. 
 - Canada  Pearson education  c2009 
 - 488 p.:  ill  27 cm. 
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>139780135040799  Tshs.45,000/= 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Microeconomics<br/>Elasticity
<br/><br/><label>Dewey Class. No.: </label>338.5 CAS