Aaker, D. A., & Day, G. S. (1990). Marketing research (4 ed., 1. print.). Wiley.
Chicago Style (17th ed.) CitationAaker, David A., and George S. Day. Marketing Research. 4 ed., 1. print. New York u.a: Wiley, 1990.
MLA (9th ed.) CitationAaker, David A., and George S. Day. Marketing Research. 4 ed., 1. print. Wiley, 1990.
Warning: These citations may not always be 100% accurate.