Ruffin, Roy J <br/><br/>
Principles of microeconomics 

 - Glenview  Foresman  1978 
 -  xxix,416p. 
<br/><br/> Includes bibliography and index 
<br/><br/><br/>eng 
<br/><br/><label>ISBN: </label>067315856 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics
<br/><br/><label>Dewey Class. No.: </label>330  / RUP