Principles of microeconomics 
Edwin Mansfield. 
 - New York  Norton  1980 
 - 319 p. 
<br/><br/><label>ISBN: </label>0393951286 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Microeconomics
<br/><br/><label>LC Class. No.: </label>HB171.5  / .M2715