APA (7th ed.) Citation

Underhill, P. (2009). Why we buy: The science of shopping : updated and revised for the internet, the global consumer and beyond. Simon & Schuster.

Chicago Style (17th ed.) Citation

Underhill, Paco. Why We Buy: The Science of Shopping : Updated and Revised for the Internet, the Global Consumer and Beyond. New York: Simon & Schuster, 2009.

MLA (9th ed.) Citation

Underhill, Paco. Why We Buy: The Science of Shopping : Updated and Revised for the Internet, the Global Consumer and Beyond. Simon & Schuster, 2009.