Zaltman, G. (2003). How Customers Think. Butterworth- Heinemann.
Chicago-čujuhus (17. p.)Zaltman, Gerald. How Customers Think. Burlington: Butterworth- Heinemann, 2003.
MLA-čujuhus (9. p.)Zaltman, Gerald. How Customers Think. Butterworth- Heinemann, 2003.
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