Henderson, J. Vernon. <br/><br/>
Principles of economics / 
J. Vernon Henderson, William Poole. 
 - Lexington, Massachussetts :  D.C. Heath and Company,  c1991. 
 - 714 pages :  Illustrations ;  27 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0669144932 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics.
<br/><br/><label>LC Class. No.: </label>HB171.5  / .H423 1991 
<br/><br/><label>Dewey Class. No.: </label>330