Lua APA (7ú heag.)

Zaltman, G. (2003). How Customers Think. Butterworth- Heinemann.

Lua i Stíl Chicago (17ú heag.)

Zaltman, Gerald. How Customers Think. Burlington: Butterworth- Heinemann, 2003.

Lua MLA (9ú heag.)

Zaltman, Gerald. How Customers Think. Butterworth- Heinemann, 2003.

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