Dyfyniad APA
Aaker, D. A., & Day, G. S. (1986). Marketing research (3rd ed.). Wiley.
Dyfyniad Arddull Chicago
Aaker, David A., and George S. Day. Marketing Research. 3rd ed. New York: Wiley, 1986.
Dyfyniad MLA
Aaker, David A., and George S. Day. Marketing Research. 3rd ed. Wiley, 1986.
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