Ruffin, Roy <br/><br/>
Principles of economics 
Roy J. Ruffin, Paul R. Gregory. 
 - Glenview, Ill.  Scott, Foresman  1983 
 - xxxii, 798 p. 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>067318871X 0673188833 (Marco volume) 0673188825 (Micro volume) 0673155080 
<br/><br/><label>LCCN: </label>
<br/><br/><label>Nat. Bib. No.: </label>GB88-17735 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics
<br/><br/><label>Subjects--Index Terms: </label>Economics 
<br/><br/><label>LC Class. No.: </label>HB171.5  / .R82 1988 
<br/><br/><label>Dewey Class. No.: </label>330 
<br/><br/><label>Universal Decimal Class. No.: </label>33