Principles of economics / 
Henderson, J. Vernon and Poole, William  
 - Lexington :  D.C. Heath and Company,  c1991 
 - xxxii,1235 pages :  ill.som.col.;  27cm.  Includes bibliographic references and indexes. 
<br/><br/><label>ISBN: </label>0 669 14491 6 
<br/><br/><label>Subjects--Personal Names: </label>--Economics.
<br/><br/><label>Dewey Class. No.: </label>330 HEN