APA citiranje

Beri, G. C. (2013). Marketing research. New Delhi: Mc Graw Hill.

Trích dẫn kiểu Chicago

Beri, G C. Marketing Research. New Delhi: Mc Graw Hill, 2013.

MLA citiranje

Beri, G C. Marketing Research. New Delhi: Mc Graw Hill, 2013.

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