Economics : explore & apply / Ronald Ayers, Robert Collinge. Ayers, Ronald M. 485 Collinge, Robert A. 8598 Ayers, Ronald M. Macroeconomics. 8599 Ayers, Ronald M. Microeconomics. 8600 Economics. 525 Microeconomics. 8567 Macroeconomics. 577 HB171.5 .A89 2004 330 21 This combined volume includes: Microeconomics and macroeconomics. Includes bibliographical references and index. Upper Saddle River, NJ : Prentice Hall, c2004. c2004. 2004 Text xxx, 734 p. : eng