APA-čujuhus (7. p.)

GZikmund, W. (2007). Essentials of marketing research (3.).

Chicago-čujuhus (17. p.)

GZikmund, William. Essentials of Marketing Research. 3. Australia, 2007.

MLA-čujuhus (9. p.)

GZikmund, William. Essentials of Marketing Research. 3. 2007.

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