RUFFIN, R. J. <br/><br/>
Principle of Economics 

 - Dallas,  Scott, Foresman  and Company,  1983. 
 - xxxii, 798p.: ill.; graph, table,  glossary,index,  25cm. 
<br/><br/><label>ISBN: </label>0-673-15508-0 
<br/><br/><label>Dewey Class. No.: </label>330  RU7F