Cita APA (7th ed.)

Underhill, P. (2000). Why we buy: The science of shopping. Texere.

Cita Chicago (17th ed.)

Underhill, Paco. Why We Buy: The Science of Shopping. London: Texere, 2000.

Cita MLA (9th ed.)

Underhill, Paco. Why We Buy: The Science of Shopping. Texere, 2000.