O'Sullivan, Arthur. Microeconomics : principles and tools / Arthur O'Sullivan, Steven M. Sheffrin. - 3rd ed. - Upper Saddle River, NJ : Pearson Prentice Hall, 2003. - xxxii, 438 p. : ill. (some col.) ; 26 cm. Includes bibliographical references and index. ISBN: 0130358126 Subjects--Topical Terms: Microeconomics. LC Class. No.: HB172 / .O8 2005 Dewey Class. No.: 338.5