Aaker, David A. Marketing research / David A. Aaker, V. Kumar and George S. Day - 5th ed. - New York : John Wiley, c1995. - xvi, 783 p. : ill. ; 28 cm. ISBN: 0471552542 LCCN: Subjects--Topical Terms: Marketing researchMarketing LC Class. No.: HF5415.2 / .A14 1995 Dewey Class. No.: 658.83 / A111m