Welfling, Weldon <br/><br/>
Principles of economics. 

 - New York  McGraw-Hill  [1971] 
 - vii, 488 p.  col. illus.  24 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0070691851 
<br/><br/><label>LCCN: </label>72126181  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics
<br/><br/><label>LC Class. No.: </label>HB171  / .W38 
<br/><br/><label>Dewey Class. No.: </label>330