Aaker, D. A., Kumar, V., & Day, G. S. (1995). Marketing research (5th ed.). Wiley.
Cita Chicago Style (17a ed.)Aaker, David A., V. Kumar, y George S. Day. Marketing Research. 5th ed. New York: Wiley, 1995.
Cita MLA (8a ed.)Aaker, David A., et al. Marketing Research. 5th ed. Wiley, 1995.
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