Heyne, Paul T. The economic way of thinking / - 6th ed. - New York : Toronto : Macmillan ; Collier Macmillan Canada, c1991. - xvi, 587 p. : ill. ; 24 cm. Includes index. ISBN: 0023541814 Subjects--Topical Terms: Economics. Dewey Class. No.: 330 COL 1991 A012 Or.