Froyen, Richard T., <br/><br/>
Principles of economics / 
Richard T. Froyen, Douglas F. Greer. 
 - New York :  MacMillan Publishing Company,  [1989] 
 - xxiv, 838 pages :  illustrations ;  26 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0023394307 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics.