Hair, Joseph F. Marketing research : in a digital information environment / Joseph F. Hair, Jr., Robert P. Bush, David J. Ortinau. - 4th ed. - Boston : McGraw-Hill Irwin, c2009. - xxiv, 690 p. : col. ill ; 27 cm. Subtitle on 3rd ed., 2006 varies. ISBN: 9780073404707 (alk. paper) 0073404705 (alk. paper) LCCN: 2008039035 Subjects--Topical Terms: Marketing research. Dewey Class. No.: 658.8/3