Zikmund, William G. Essentials of marketing research / William G. Zikmund, Barry J. Babin. - 5th ed. - Australia ; Mason, OH : South-Western Cengage Learning, c2013. - xxiv, 452 p. : ill. ; 28 cm. Includes bibliographical references and index. ISBN: 9781133190646 Subjects--Topical Terms: Marketing research.