Poundstone, W. (2010). Priceless (NA.). Hill and Wang.
Chicago-čujuhus (17. p.)Poundstone, William. Priceless. NA. New York: Hill and Wang, 2010.
MLA-čujuhus (9. p.)Poundstone, William. Priceless. NA. Hill and Wang, 2010.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.