Gerzema John. (2008). Brand Bubble: Looming Crisis in Brand Value. Jossey Bass.
Chicago-čujuhus (17. p.)Gerzema John. Brand Bubble: Looming Crisis in Brand Value. New Jersey: Jossey Bass, 2008.
MLA-čujuhus (9. p.)Gerzema John. Brand Bubble: Looming Crisis in Brand Value. Jossey Bass, 2008.
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