APA aipamena

Underhill, P. (1999). Why we buy: The science of shopping. Simon & Schuster.

Chicago Style aipamena

Underhill, Paco. Why We Buy: The Science of Shopping. New York: Simon & Schuster, 1999.

MLA aipamena

Underhill, Paco. Why We Buy: The Science of Shopping. Simon & Schuster, 1999.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.