Arnold, Roger A. Economics / Roger A. Arnold. - 9th ed. - Mason, OH : Cengage Learning, South Western, 2008. - xxxii, 826 p. : col. ill. ; 26 cm. Include index. ISBN: 9780324595420 (0-324-59542-5) 9780324785685 LCCN: 2008938430 Subjects--Topical Terms: Economics Dewey Class. No.: 330