Walton, Gary M. Understanding economics today / Gary M. Walton, Frank C. Wykoff - 6th ed. , international ed. - Boston, Mass. : Irwin McGraw-Hill, 1998 - 496 p. : ill. - McGraw-Hill economics series . Includes bibliographical references and index ISBN: 0071158731 Subjects--Topical Terms: Economics LC Class. No.: HB171.5 / W347U 1998