Laudon, Kenneth C. Essentials of business information systems / Kenneth C. Laudon, Jane P. Laudon. - 7th ed. - Upper Saddle River, N.J. : Pearson/Prentice Hall, c2006. - xxviii, 433 [38] p. : col. ill. ; 29 cm. Includes index. Includes bibliographical references. ISBN: 0132277816 (hbk.) Subjects--Topical Terms: Management information systems.