Amacher, Ryan C. <br/><br/>
Principles of economics / 
Ryan C. Amacher, Holley H. Ulbrich. 
 - 4th ed. 
 - Cincinnati :  South-Western Publishing Company,  c1989. 
 - xvi, 846 pages  Illustrations ;  26 cm 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0538800720 
<br/><br/><label>LCCN: </label>88026391 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics.
<br/><br/><label>LC Class. No.: </label>HB171.5  / .A397 1989 
<br/><br/><label>Dewey Class. No.: </label>330