APA-čujuhus (7. p.)

BERI G C. (2017). MARKETING RESEARCH (5TH.). MC GRAW HILL EDUCATION.

Chicago-čujuhus (17. p.)

BERI G C. MARKETING RESEARCH. 5TH. NEW DELHI: MC GRAW HILL EDUCATION, 2017.

MLA-čujuhus (9. p.)

BERI G C. MARKETING RESEARCH. 5TH. MC GRAW HILL EDUCATION, 2017.

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