Economic 
J.Holton Wilson 
 - 3rd ed 
 - U.S.A  South-western Publishing co  1993 
 - xxiv,611 p.:  ill,;  26cm 
<br/><br/><label>ISBN: </label>0-538-61400-5 
<br/><br/><label>Dewey Class. No.: </label>330