AAKER DAVID A. (1983). MARKETING RESEARCH (2ND.). JOHN WILEY AND SONS.
Chicago-čujuhus (17. p.)AAKER DAVID A. MARKETING RESEARCH. 2ND. JOHN WILEY AND SONS, 1983.
MLA-čujuhus (9. p.)AAKER DAVID A. MARKETING RESEARCH. 2ND. JOHN WILEY AND SONS, 1983.
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