Grant, Susan IGCSE and O level economics / - 3rd ed. - Mason, OH : South-Western Cengage Learning, 2004. - 472 p. : ill. ; 26 cm. Includes index. ISBN: 9780521720038 LCCN: 2008935335 Subjects--Topical Terms: Economics. LC Class. No.: HB171.5 / .M263 2008 Dewey Class. No.: 330