Luck, D. J., & Rubin, R. S. (1987). Marketing research (7th ed.). Prentice-Hall / pvt. Ltd..
Chicago Style aipamenaLuck, David Johnston, and Ronald S. Rubin. Marketing Research. 7th ed. Englewood Cliffs, NJ ; New Delhi: Prentice-Hall / pvt. Ltd., 1987.
MLA aipamenaLuck, David Johnston, and Ronald S. Rubin. Marketing Research. 7th ed. Prentice-Hall / pvt. Ltd., 1987.
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