Bruce Greenwald. (2014). Competition Demystified. Penguin.
Chicago-čujuhus (17. p.)Bruce Greenwald. Competition Demystified. Penguin, 2014.
MLA-čujuhus (9. p.)Bruce Greenwald. Competition Demystified. Penguin, 2014.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.