Hubbard, R. Glenn. Essentials of economics / R. Glenn Hubbard, Anthony Patrick O'Brien. - Upper Saddle River, NJ : Pearson Prentice Hall, 2007. - 1 v. (various pagings) : col. ill. ; 28 cm. Includes bibliographical references and index. ISBN: 0136086233 (pbk.) 9780136086239 (pbk.) LCCN: 2008029352 Subjects--Topical Terms: Economics.