O’Sullivan, Arthur. Microeconomics : principles, applications, and tools / Arthur O’Sullivan, Steven M. Sheffrin, Stephen J. Perez. - 6th ed. - Upper Saddle River, NJ : Pearson Prentice Hall, c2010. Includes bibliographical references and index. ISBN: 978135093436 Subjects--Topical Terms: Economics. Dewey Class. No.: 330