Zikmund, William G. Essentials of marketing research / William G. Zikmund. - 2nd ed. - Mason, Ohio : Thomson/South-Western, c2003. - xxi, 452 p. ; 26 cm. Includes index. ISBN: 0324182570 (pbk) Subjects--Topical Terms: Marketing research. Dewey Class. No.: 658.83 / ZIK