Melvin, Michael Principles of economics / Michael Melvin and William Boyes. - 8th ed. - Australia ; Mason, OH : South-Western Cengage Learning, c2011. - xxxix, 804, [28] p. : ill., maps. ; 26 cm. Includes bibliographical references and index. ISBN: 9780538797801 Subjects--Topical Terms: Economics. LC Class. No.: HB171.5 / .M45 2011