Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (8th εκδ.)

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