McConnell, Campbell R. <br/><br/>
Economics :  principles, problems, and policies / 
Campbell R. McConnell. 
 - 4th ed. 
 - New York :  McGraw-Hill,  c1969. 
 - xxvii, 815 p. :   ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical   references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics.