Proctor, Tony Essentials of marketing research / Tony Proctor - 4th ed. - Harlow, England ; New York : Financial Times/Prentice Hall, 2005. - xxiii, 591 p. : ill., maps ; 25 cm. Previous ed.: 2002. Includes bibliographical references (p. [559]-576) and index. eng. ISBN: 0273694944 (alk. paper) Subjects--Topical Terms: Marketing research. Dewey Class. No.: 658.83 PRO