Arnold, Roger A. Macroeconomics / Roger A. Arnold. - 13th ed. - Boston, MA : Cengage, c2019. - xxvi, 579 p. : ill. ; 25 cm. Includes bibliography & index. ISBN: 9781337617390 Subjects--Topical Terms: Macroeconomics LC Class. No.: HB172.5 / .A76 2019