O'Sullivan, Arthur. Economics : principles and tools / Arthur O'Sullivan, Steven M. Sheffrin. - 2nd ed. - Upper Saddle River, N.J. : Prentice Hall, c2001. - 1 v. (various pagings) : ill. (some col.) ; 26 cm. - Prentice-Hall series in economics . Includes bibliographical references and index. ISBN: 013027383X LCCN: 00032632 Subjects--Topical Terms: Economics. LC Class. No.: HB171.5 / .O84 2001 Dewey Class. No.: 330