Cita APA (7th ed.)
Underhill, P. Why we buy: The science of shopping. Simon & Chuster.
Cita Chicago (17th ed.)
Underhill, Paco. Why We Buy: The Science of Shopping. Simon & Chuster.
Cita MLA (9th ed.)
Underhill, Paco. Why We Buy: The Science of Shopping. Simon & Chuster.
Atenció: Aquestes cites poden no estar 100% correctes.