Ruffin, Roy <br/><br/>
Principles of economics/ 
Roy J. Ruffin, Paul R. Gregory . - - 
 - sixth edition 
 - 706 pages, various pages :   illustrations; colored  26 cm. 
<br/><br/>includes bibliographical references and index. 
<br/><br/> College of Business and Accountancy  Bachelor of Science in Business Administration major in Financial Management  Bachelor of Arts in Political Science  Bachelor of Science in Business Administration major in Financial Management 
<br/><br/><label>ISBN: </label>0-673-99488-0 
<br/><br/><label>Dewey Class. No.: </label>330 R83  / 1997