Underhill, P. (2000). Why We Buy. Penguin Group.
Chicago-čujuhus (17. p.)Underhill, Paco. Why We Buy. New Delhi: Penguin Group, 2000.
MLA-čujuhus (9. p.)Underhill, Paco. Why We Buy. Penguin Group, 2000.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.