Hair, Joseph F. Jr. Marketing research: in a digital information environment/ Joseph F. Hair, Jr., Robert P. Bush, and David J. Ortinau. - 4th edition. - Boston: McGraw-Hill, c2009. - xxiv, 690 pages; 25 cm. Includes bibliographical references and index. ISBN: 978-0-07-340470-7 Subjects--Topical Terms: Marketing research.Research, Marketing. Dewey Class. No.: DC 658.83 / H12m